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6mm Dasher

Good question. I don’t have the full answer, however here is my bit, as I use mostly alpha ocd and some Peterson‘s.
My alpha were 39.5 ( plain water no alcohol) out of the box and 40.5 after few firings when they reached full chamber size.
Peterson one full grain less 38.5 new, 39.5 fully ff.
I don’t fireform Lapua sorry. Alpha legacy reamer here .154 fb.
 
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TylerN said:
I've been running Alpha brass and have had no issues. However the tinkerer in me decided to fireform some Lapua brass to try out

I went with the false shoulder technique and results were great and the process is easy…

0.257" false shoulder. Ran a mandrel through the brass. Backed out my already setup sizing die on my Dillon 550 1 turn. With the Armanov tool head this is repeatable due to the floating die…
Click to expand...
I mostly run Lapua, .257 mandrel too, then slowly size the neck back to .243 to give me a false shoulder tight fit. I add Bullseye powder to the case and hold it in place with some polyester pillow fluff. Put the rifle in my cleaning rest at the range and run sets of ten shots followed by a patch to clean out the fouling. I’ll do 200 cases at a time. I get a case that is probably 85% formed. A standard Dasher load was next, usually at a 300 yd match.

I did buy 200 pieces of Peterson, which had to be neck turned to fit my chamber. The Peterson has 1.56 grams less internal capacity then my Lapua based on alcohol weight.

I have Lapua cases that have 20+ firings on them. I AMP anneal after each firing and only bump my shoulders .001. My loads are legitimate, but not crazy.
 
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asplund01 said:
Would you mind sharing load data?
Click to expand...
I assumed was the 34.8 he used for the per round calculation. You won’t be able to stuff 34.8 of h4350 in anything than Lapua, or maybe Alpha but by a long tube…
 
So here are the Facts: I have a 6 mm dasher and use Aplha brass, and can easily load 35.4 gr ( .2 above Hodgdon max for a 107 gr SMK) into the Alpha case and seat a 107SMK with a Forester seating die.
My fired 6 dasher Alpha cases hold 40.1 gr of H2O. And the Hodgdon 2020 Annual Manual P #84 has load data for H4350 107 gr SMK 35.2 gr (C for compressed powder charge) as a max load. Seems like I tried this load but, but do not have any data on it. According to Hodgdon you can load 38.3 gr of H4350 into the dasher case with a 90 gr SWT SCIR.
I load 40.8 gr of CFE 223 behind a 58 gr V Max, mabe a bit more...they are running 4100 fps out of a 7.5 twist and grouping very well for a varmint bullet.
I consider the 6 mm Dasher to be the best 6 mm available for accuracy vs velocity. It will run 110 SMK at 3085 fps, accurately...or slow down to 2950 to 3020 with a match bullet for one hole groups in the .2s" for not so good shooters.
 

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What do you all think about the using the new Hornady 80gr ELD-VT in a 6 Dasher for prairie dogs?
 
Well, IMHO... depends on how far you want to shoot, or just smoke hundreds of dogs.
The new bullets have a max range at which they will expand...maybe 600 yds at good muzzle velocities. After that it's just a 6mm, so maybe one of the high BC target bullets would help you connect ...if shooting for a record say 1000 yds or more. For all out slaughter at reasonable ranges 400 yds and in, say, mostly 95 % of "the tries" the 223 is the one for the task.
I have shot the 6mm 58 gr at 4100 fps in the 6 Dasher with 7.5 twist with good accuracy...closer range, " Blast em into the sky, in pieces." A Beatles song, I believe.
 
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First off, thank you guys for ending my 3 year debate on what 6mm case to settle on.

I finally swapped out my HMR from 308 to 6 Dasher and I fricking love this thing so far, so I thought I should share data.

24.25" Kreiger Light Palma (it's going to be a hunting gun, PRS and occasional F-Class)
Manson Reamer with .150 freebore using spiders.
I am using Peterson brass due to being locally sourced
31.0 Varget
CCI 450
Sierra 107s

2770 FPS using a Garmin
10.4 ES
3.8 SD

The first 50 rounds down the tube and the last 5 shot group I shot a personal best 0.077"

I don't yet know how far off the lands I am but we're going to make a gauge this weekend. The Peterson is VERY round at the shoulder junction, I cant wait to start shooting formed brass.
 
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morning would said:
@samsgreen you are in for a treat. Congrats on making the right choice for you. It’s a pretty damn easy cartridge to love.
Click to expand...
@morning would thank you, it has been great so far! I have a really rookie question that I havent been able to find the answer to, here goes;

My reamer is .273 neck and .104 freebore. With that being said, I've been using Peterson brass and would like to try Alpha. Can I? I've fallen in the rabbit hole of Norma length stuff and cant seem to decipher what the Alpha is exactly.

The rational for reamer selection was that the Peterson was locally available but now the shop can only seem to get Alpha, the usual online places are out of Peterson.
 
samsgreen said:
@morning would thank you, it has been great so far! I have a really rookie question that I havent been able to find the answer to, here goes;

My reamer is .273 neck and .104 freebore. With that being said, I've been using Peterson brass and would like to try Alpha. Can I? I've fallen in the rabbit hole of Norma length stuff and cant seem to decipher what the Alpha is exactly.

The rational for reamer selection was that the Peterson was locally available but now the shop can only seem to get Alpha, the usual online places are out of Peterson.
Click to expand...

6mm Norma Dasher is the long neck brass, all the rest should be "standard" length. Obviously, the longer Norma Dasher brass cannot be used in a "standard" Dasher chamber without being trimmed to the appropriate length.

PT&G makes (or made) a reamer for the 6mm Norma Dasher with the longer neck.

I don't currently use any other brass besides Norma Dasher, so I cannot comment about the other brands you mentioned.
 
45-90 said:
So here are the Facts: I have a 6 mm dasher and use Aplha brass, and can easily load 35.4 gr ( .2 above Hodgdon max for a 107 gr SMK) into the Alpha case and seat a 107SMK with a Forester seating die.
My fired 6 dasher Alpha cases hold 40.1 gr of H2O. And the Hodgdon 2020 Annual Manual P #84 has load data for H4350 107 gr SMK 35.2 gr (C for compressed powder charge) as a max load. Seems like I tried this load but, but do not have any data on it. According to Hodgdon you can load 38.3 gr of H4350 into the dasher case with a 90 gr SWT SCIR.
I load 40.8 gr of CFE 223 behind a 58 gr V Max, mabe a bit more...they are running 4100 fps out of a 7.5 twist and grouping very well for a varmint bullet.
I consider the 6 mm Dasher to be the best 6 mm available for accuracy vs velocity. It will run 110 SMK at 3085 fps, accurately...or slow down to 2950 to 3020 with a match bullet for one hole groups in the .2s" for not so good shooters.
Click to expand...

Can you please give some details about your barrel brand, rifling (cut or button), and length?

Also, what size groups?

I tried some 70gr, 75gr, and 87gr loads yesterday with terrible results from my 7.5T.
 
smoooth1 said:
Can you please give some details about your barrel brand, rifling (cut or button), and length?

Also, what size groups?

I tried some 70gr, 75gr, and 87gr loads yesterday with terrible results from my 7.5T.
Click to expand...
Bartlein 5 R SS 28" M24 cut rifling 7.5 twist. I'm not a very good shooter these days eyesight and old age, but it did 13, 5 shot groups with different powders and bullets the average of the 13 was, .313" I chambered it myself with my own reamer. It shoots 55 to 115 well, the 58 was good at 4100 fps in the 7.5 twist.
 

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I found a target with the Varmint bullets in 6 mm Dasher at 4100 fps for the 58 gr and 3700 fps for the 70 gr. with the 7.5 twist. With better eyesight probably wouldn't have a flyer, and a good shooter could eliminate that...but that's an example of what I got.
 

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^^^ NICE! ^^^

I would be happy with those results, too!

I have the same barrel, but 20", best group was 1.125", sadly.

Used Varget in all loads, perhaps a powder change would help?

Thanks!
 
smoooth1 said:
^^^ NICE! ^^^

I would be happy with those results, too!

I have the same barrel, but 20", best group was 1.125", sadly.

Used Varget in all loads, perhaps a powder change would help?

Thanks!
Click to expand...
Varget is a good powder for accuracy..."usually" in heavy bullet loads...in 6 dasher...but it seems to change its strips and sometimes the worst powder depending on the application including the 308 where it had a S/D of 58 fps on weighed charges in a 16" barrel.
So Varget can be a good choice, but not always the best.
Here I used CFE223 with the Varmint bullets, maximum load in the Hornady annual manual, for both bullets, with Alpha brass and Remington 7 1/2 primer. About 40.8 gr with 55 gr & 58 gr bullets...the 58 was fast and accurate, as well as the 70 BT. The 55 gr was ok but needed a little adjustment, lower velocity, or higher velocity...would probably do it, to where it comes together...but the other two are not picky fill it up with CFE223...work up to the manual max and give it a try. 6 mm Dasher is notoriously accurate, find the area your barrel likes.
 
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Has anyone compared the Hornady eld match 108 bullets to the berger 105 hybrids? If so what was your results? Witch shot better? Especially if you have a 26" bartlein 7.5
 
louu said:
Has anyone compared the Hornady eld match 108 bullets to the berger 105 hybrids? If so what was your results? Witch shot better? Especially if you have a 26" bartlein 7.5
Click to expand...
That might be a barrel preference thing...but in my barrel the Berger 108 match shoot better than the Hornady 108 eldm but not by much and Berger seem more consistent for small groups

Only shot a few hundred Berger 105s they were harder to get and the 108 Berger was so accurate and obtainable...So bought thousands, with the 108 Berger slightly better than the 105 Berger, in my barrel.

They do double duty 108 Berger and 108 ELDM are used in the 6mm ARC also, with usually a slight advantage to Berger.
 
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SavageSR308 said:
I've been playing with Staball match quite a bit now. I really like it so far. I've shot Berger 108 elite hunters, Sierra 107's, and Barnes 112's. I can get them all to 2900fps + out of 26" proof barrels. I did a small data post over on accurate shooter with the 107. I went up to 34.5gr. This was all in Lapua brass mind you. It doesn't give me the tack driving accuracy of Varget or other extruded powders, but its still pretty good. I'm sure I can fix a lot of it with seating depth. Most of my testing I was using seating depths from loads developed with extruded powders.

Today I shot 33.8gr under a Barnes 112. 1.797 cbto. Lapua brass. It went 2897fps 6.6 SD for 5 shots. 1\2" group.

I've been using it in .308 as well with great success.

Concerning your pressure signs, I recently fire formed 200 peices of Peterson Dasher and had the same issue at the beginning. I was getting ejector marks with 29.5 gr of Varget and a 105bthp @ 2750 ish FPS. I had a few rounds that didn't go off and I had to hit them twice to get them to fire. It was driving me crazy. Then I realized that my virgin brass was ~ .011 short on headspace. So I moved my seating depth out to jam the bullet .020 and it fixed my problems. I somehow measured this incorrectly when I originally measured my virgin cases. Check you headspace.
Click to expand...
Is it possible to create Dasher brass from a six. five millimeter creedmoor case?
 
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9/11 said:
Is it possible to create Dasher brass from a six. five millimeter creedmoor case?
Click to expand...
I'd guess it's technically possible but definitely the hard way vs Alpha Dasher brass or fire forming Lapua.
 
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Yes, you can...but should you?
Here is how I do it but it's definitely not recommend, unless you can not get any brass...I use Alpha brass for my 6 Dasher...
But 6 dasher can be made out of any 308 based cartridge, even a 30-06 if you care to work at it.
I used LR primer 6.5 CM brass but you can get SR primed 6.5 CM brass.
The shiny one is 6.5 CM and the dull one is fired 6 dasher....you will need to neck turn also.
I forgot the first step is to move the 6.5 CM shoulder back, trim to length, then move it back to close to finish, in steps.l of 30° as 40° shoulders are harder to move without collaspe, so that is why the steps must take place, in shoulder location gradually, and anneal on the last step. Plus remember to neck turn...as I said you can ...but it's much easier to just buy Alpha brass. But if you have the tools, it's not difficult either. And you process a bunch at a time with each progresive step...also check your case volume when done.
 

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I’ll share my load data:

Barrel: 26”, 7.5 twist MTU contour Bartlein
Chamber: .120” freebore
Bullet: 109 Berger LRHT .02” off the lands
Brass : Alpha OCD
Primer: CCI 450
Powder: 32 gn of RL 15.5 at 98% fill
Velocity: 2860 FPS

On my 8th firing with this current Alpha brass and I anneal with an AMP every time.
 
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Need a quick sanity check...

Just finished building my first 6mm Dasher rifle (specs below), and while loading up my first rounds, I confused myself when I got to bullet seating depth. I used a Sinclair Bullet Seating Depth Gauge to figure out where my lands were at, and repeated the measurement on a dummy cartridge (increasing seating depth until the bolt handle drops). Results were within 0.001" of each other, so I trust that I'm in the right neighborhood.

Bullet touching the lands:
  • CBTO = 1.808"
  • COAL = 2.392"
Data/charts that I have come across say the COAL for 6 Dasher is 2.441", or 0.049" longer than my max length load with 105 VLDs. I understand that bullet lengths vary due to inconsistencies at the meplat. But on other cartridges that I have reloaded for, the chambers usually accommodated bullets seater longer than spec, and seating depth is limited by magazine dimensions. This is the first time that I have to load shorter than the book shows.

Is this normal with the chamber on a Proof Pre-fit? My loaded dummy round looks about right to me.
6Dasher105VLD.jpg


Virgin Alpha Brass
Berger 105 VLD
Varget (starting at 30.5 gr for break-in)
CCI #450

Impact 737R
Proof Pre-fit 26"
Foundation Centurion
Hawkins M5 DBM
MDT AICS Mags
ZCO 527
 
+1 for 1.79x CBTO with .104 freebore.

I've found 1.787-1.789 CBTO works great in my .104 with 107 SMK and 108 EH.
 
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Sheldon N said:
Yep, perfectly normal. My CBTO is usually in the range of 1.79ish with a 104 freebore and low 1.8's with a 130ish freebore. Suspect yours is the latter.
Click to expand...

Awesome, thanks. I just wanted to make sure I wasn't making a dumbass mistake before loading up a bunch of rounds and heading off to the range that is over 1 hour away.
 
ivorykid said:
Need a quick sanity check...

Just finished building my first 6mm Dasher rifle (specs below), and while loading up my first rounds, I confused myself when I got to bullet seating depth. I used a Sinclair Bullet Seating Depth Gauge to figure out where my lands were at, and repeated the measurement on a dummy cartridge (increasing seating depth until the bolt handle drops). Results were within 0.001" of each other, so I trust that I'm in the right neighborhood.

Bullet touching the lands:
  • CBTO = 1.808"
  • COAL = 2.392"
Data/charts that I have come across say the COAL for 6 Dasher is 2.441", or 0.049" longer than my max length load with 105 VLDs. I understand that bullet lengths vary due to inconsistencies at the meplat. But on other cartridges that I have reloaded for, the chambers usually accommodated bullets seater longer than spec, and seating depth is limited by magazine dimensions. This is the first time that I have to load shorter than the book shows.

Is this normal with the chamber on a Proof Pre-fit? My loaded dummy round looks about right to me.
View attachment 8364449

Virgin Alpha Brass
Berger 105 VLD
Varget (starting at 30.5 gr for break-in)
CCI #450

Impact 737R
Proof Pre-fit 26"
Foundation Centurion
Hawkins M5 DBM
MDT AICS Mags
ZCO 527
Click to expand...
Where are you seeing 2.44x" COAL published?

...not much bearing surface in the neck loading that long:


IMG_853411.jpg



image12.jpg
 
Can I be a dipshit for a minute and ask what freebore is. Is it the distance between the top of the shoulder/base of the neck to the start of the lands where the arrow is?
20240304_161422.jpg
 
ivorykid said:
Need a quick sanity check...

Just finished building my first 6mm Dasher rifle (specs below), and while loading up my first rounds, I confused myself when I got to bullet seating depth. I used a Sinclair Bullet Seating Depth Gauge to figure out where my lands were at, and repeated the measurement on a dummy cartridge (increasing seating depth until the bolt handle drops). Results were within 0.001" of each other, so I trust that I'm in the right neighborhood.

Bullet touching the lands:
  • CBTO = 1.808"
  • COAL = 2.392"
Data/charts that I have come across say the COAL for 6 Dasher is 2.441", or 0.049" longer than my max length load with 105 VLDs. I understand that bullet lengths vary due to inconsistencies at the meplat. But on other cartridges that I have reloaded for, the chambers usually accommodated bullets seater longer than spec, and seating depth is limited by magazine dimensions. This is the first time that I have to load shorter than the book shows.

Is this normal with the chamber on a Proof Pre-fit? My loaded dummy round looks about right to me.
View attachment 8364449

Virgin Alpha Brass
Berger 105 VLD
Varget (starting at 30.5 gr for break-in)
CCI #450

Impact 737R
Proof Pre-fit 26"
Foundation Centurion
Hawkins M5 DBM
MDT AICS Mags
ZCO 527
Click to expand...
Well that's the first it's an anomaly what I would do if it isn't up to chamber maybe run a rent and manson and reamer in there and take it out a little bit what I've been doing is running heavier bullets which make them longer so I welcome a chamber that the bullet is going to go over call because a I have your bullet is harder for the wind to blow and it's better aerodynamics I use a very heavy Palmer barrel I use a very slow powder and I use a very light sugar I'm talking like 8 -9 oz and with the 6 mm creedmoor I've been able to surgically lay my rounds down with about an eighth of an inch moa which coincidentally was the first time I shot the gun now I just got a barrel off of McGowan out in Montana it was supposed to take 12 weeks to make and they did it to me in four I'm putting it on a 1942 Springfield 1903 I got a timney trigger on it I ordered the eight Palmer the gun already was sportorised so I didn't
commit a mortal sin the heavy Palmer the slow powder and a heavy bullet work for me with everything from 3006 to 7 mm mag to create more and the recipes I'm running I don't see
them in the book everybody's using faster powder like varget or or that and I'm just up the gun range killing it me and my buddy got similar firearms and he's getting the same exact results that I'm getting
 

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louu said:
Can I be a dipshit for a minute and ask what freebore is. Is it the distance between the top of the shoulder/base of the neck to the start of the lands where the arrow is?
Click to expand...

Freebore is a smooth section that starts at the end of the chamber (just past the case mouth) and continues up to where the lands start. It's usually just very slightly larger than bullet diameter so a bullet can pass through freely after it leaves the case but before it encounters the lands. A larger freebore number means you can seat your bullets out longer.


photo56369.png
 
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I have a .104 reamer and my OAL is like .070+/- shorter than the listings given by a couple different brands. Like an idiot I loaded up a batch and was .040 into the lands, dont be like me. I wound up in the 2.3xx" range OAL on both 107SMK and 108ELDs, I'm going to mess with hunting bullets this week to chase coyotes with. I'll post up what I find.

Anyone tried the 95 SMKs?
 
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louu said:
Can I be a dipshit for a minute and ask what freebore is. Is it the distance between the top of the shoulder/base of the neck to the start of the lands where the arrow is? View attachment 8364548
Click to expand...
That picture is looking at the case mouth (under the blue dot), and the start of the freebore (at the red arrow, lands would start further right) showing how far that brass can grow before trimming is needed. Also pretty good show of how carbon can build up there….
 
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TheOfficeT-Rex said:
That picture is looking at the case mouth (under the blue dot), and the start of the freebore (at the red arrow, lands would start further right) showing how far that brass can grow before trimming is needed. Also pretty good show of how carbon can build up there….
Click to expand...
So freebore is from the arrow to the start of the lands?
 
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louu said:
So freebore is from the arrow to the start of the lands?
Click to expand...

Yup, basically. The lands are cut at an angle (the lead), the area prior to that, where they are completely cut away is the freebore.
 
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Citius7 said:
Shot with a modest 31.5 grains of IMR 8208 XBR with 80 grain flat base bergers at 240 yards. Got 3105 fps and shot half MOA. At 100 yards we stacked bullets on top of one another. We just used this load to fire form our lapua brass. Can't wait to shoot the 105s to see what happens. I wonder if you give up barrel life to the IMR XBR vs Varget? Any thoughts or experience?


Sent from my iPhone using Tapatalk
Click to expand...
My own opinion at the shooting these guns 6 millimeter creedmoor 6.5 read more is a modest amount of powder is better than an extreme amount of powder, every time you go to the outer limits with something the accuracy isn't there now to George you may be talking a half an inch or an inch more likely I have but as you start to stretch out that moa increases now the thing is with the 6.5 I was able to get surgical accuracy out of the gun with the 6mm creedmoor I was able to put bullets in the same hole 5 6 7 at a time as long as the gun didn't heat up I used a heavy Palmer barrel I used 500 trifling I used the 175 twist and I used a heavy bullet 153.5 along with a very slow powder essentially when I'm saying is the powder would nut at more towards the end of the barrel then early in the barrel varget it's a good powder but what I found is running the barrel running a twist running the length I was able to use a slow powder and a real heavy bullet and a long-ass barrel 28 or better and get accuracy that was phenomenal now what I'm going to try to do is this I know the six five shoots fantastic I know the 6 mm creedmoor shoots fantastic, then why would not 6 mm Dasher fitted with a David tubs bullet 115 Gr out of a 28 inch barrel heavy Palmer with a slow powder not shoot lights out?
 
This right here is a 6mm creedmoor ladder test the top bullets are David tubbs 115 that's been coated in boron nitride the bottom for bullets are I think it was like 38.3 or something grains of bit of vitavouri 568 non-coated 115s approximately 100 and 20 yards walking up 2 g at a time and placing the next bullet right next to the next one I was blown away this was the first time I shot the gun that was new with a new mc gowan barrel that I just got back from Montana that not only would the bullets group like they did with a new barrel brand new barrel spanking ass new that into .2 g increments that this bullet would place right next to the next one touching whether it was a a jacketed bullet or a boron nitron coated bullet go figure maybe what I'm saying with the 6mm Dasher isn't going to work maybe it'll work just fine but what I am saying is it's worked in this 3006 it's worked in the 7mm rem mag and it's worked in those other calibers I believe it's going to work exceptionally and trust me what I have to rat on myself and come back here and eat crow that's what I'm going to do!
 

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Here’s my velocity ladder for 115 DTACs in 6 dasher with N140. This was shot out a 26” 1:7.5 twist barrel in 55* weather. I saw no pressure signs

IMG_2255.jpeg


I ended up sticking with the 30.5gr charge. This is the same charge weight I use for Varget and the speeds are almost identical.

10rds of N140 at that charge weight gave me an SD of 8 and ES of 28 with an average speed of 2734. I’m hoping that gets a bit better once I replace my chargemaster lite.

While I am here, what G7 BCs are people using for DTACs at dasher speeds? I had been using a G7 of .276 from the Geoballastics library. But I seem to consistently be a bit high at longer ranges. A G7 of .300 better aligns with my rifle.
 
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9/11 said:
This right here is a 6mm creedmoor ladder test the top bullets are David tubbs 115 that's been coated in boron nitride the bottom for bullets are I think it was like 38.3 or something grains of bit of vitavouri 568 non-coated 115s approximately 100 and 20 yards walking up 2 g at a time and placing the next bullet right next to the next one I was blown away this was the first time I shot the gun that was new with a new mc gowan barrel that I just got back from Montana that not only would the bullets group like they did with a new barrel brand new barrel spanking ass new that into .2 g increments that this bullet would place right next to the next one touching whether it was a a jacketed bullet or a boron nitron coated bullet go figure maybe what I'm saying with the 6mm Dasher isn't going to work maybe it'll work just fine but what I am saying is it's worked in this 3006 it's worked in the 7mm rem mag and it's worked in those other calibers I believe it's going to work exceptionally and trust me what I have to rat on myself and come back here and eat crow that's what I'm going to do!
Click to expand...
Holy fuck man….. learn to use punctuation.
 
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Overclok79 said:
Here’s my velocity ladder for 115 DTACs in 6 dasher with N140. This was shot out a 26” 1:7.5 twist barrel in 55* weather

View attachment 8380647

I ended up sticking with the 30.5gr charge. This is the same charge weight I use for Varget and the speeds are almost identical.

10rds of N140 at that charge weight gave me an SD of 8 and ES of 28 with an average speed of 2734. I’m hoping that gets a bit better once I replace my chargemaster lite.

While I am here, what G7 BCs are people using for DTACs at dasher speeds? I had been using a G7 of .276 from the Geoballastics library. But I seem to consistently be a bit high at longer ranges. A G7 of .300 better aligns with my rifle.
Click to expand...
I’ve been shooting Dtacs for many years. The non coated/non nose ring version. I’ve always used a G7 of .296 and it’s worked well.
 
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Anyone have/want to sell 100qty Dtacs so I can try them out? Got a new rig and want to give them a run again without buying 500 at a time!
 
Find a buddy and split $500 of them they shoot perfectly in my six creedmoor surgical I'm going to be putting them in my six Dasher and I'm sure they'll be surgical
 
I have tried the 115 DTAC coated in my 6 Dasher, with a bunch of different powders, a little over 2800fps to 3044 fps they are basically accurate, with a variety of powders.
I tend to shoot the 110 gr SMK at 3085 fps, I believe they have a higher BC.
 
45-90 said:
I have tried the 115 DTAC coated in my 6 Dasher, with a bunch of different powders, a little over 2800fps to 3044 fps they are basically accurate, with a variety of powders.
I tend to shoot the 110 gr SMK at 3085 fps, I believe they have a higher BC.
Click to expand...

Even with a very long barrel I would not recommend shooting at those upper speed ranges. Way over pressure.
 
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Sheldon N said:
Even with a very long barrel I would not recommend shooting at those upper speed ranges. Way over pressure.
Click to expand...
The the charts for the 6 mm Dasher are not as complete as we'd like them to be so consequently pressure numbers and powder consistencies it's not as prevalent as say a 7 mm mag or 65 creedmoor and the number so sometimes you're sticking your foot in the water to test how warm it is and I agree that I have your bullet with a longer barrel and they build you up more pressure that's why I've been using slower powders slower patterns will nut not longer down the barrel then fast stuff say bargain and faster even superformance is a good powder to use with that but something slower for sure but on the other hand you can get great accuracy with these bullets so walking it up and using a chronograph is the only safe Way of approaching that situation
 
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