- Thread starter Sportin Wood
- Start date
Correct
Curious what's you COAL or CBTO on th 156's?
I just rolled up a batch of 153.5's that I'm having to jump 110 thou to mag feed with binders.
CBTO is 2.185” and I use the new version non-binder plate MDT magazines
Appreciate it, looks like it shoots great!
I sold all my binderless mags a while ago as I never had a need for them with the pills I was loading. Looks like I'll need to go with no plates also.
I'll update a range report next weekend with my huge jump
Looks like we're almost exactly the same to the lands.
Proof prefit at 340 round count.
My BTO to the lands was 2.275.
I gotta snag a few thousand more of these 153's before they get crazy popular and become impossible to find like all the other Berger's
Did this test again today...
Berger 140 ht, Lapua SRP, CCI450, H4350 … Five rounds each weight of 39.6-39.8-40.0-40.2-40.4-40.6-40.8
COAL 2.8” …CBTO 2.093+-
Three lowest SD's
Are these good considered a good SD?......@ 39.8 SD was 5.4 (2626-2630-2632-2622-2619)
@ 40.2 SD was 5.54 (2671-2676-2681-2186-2191)
@ 40.6 SD was 6.08 (2708-2718-2708-2721-2710)
That 40.2 Data looks off. Typo on the last two velocity inputs?
Yeah they are considered good, but with 5 shots it doesn't mean a lot. If you did that with 20 or 30 shots and got that same SD it would be very good.
No they are what the Magneto speed captured. BUT...I am newish to reloading and I will say that I am using an auto trickler and i set it to 40.2...sometimes it throws a tad more or a tad less...i.e it might have thrown 40.29 or 40.27 .... I'm trying to be realistic when doing the test....does everyone buy these fancy machines and still baby sit them to the exact grain? That is a sincere question.... If i buy a box of Hornady 140s am I getting an exact grain count or am I getting the same variable?
That will be my next step. I was going to load 15 of each of the three but I can do 20 to see if it is a valid charge...Thank you for the help and input...
I don’t do the fancy machine. I bought a nice electronic scale accurate to .02 grain, and I keep a close eye on the weight after I lift the pan off the scale. It should always read a negative weight of the pan, and if it drifts a bit I return the powder to the source and re-zero the scale. Keep an eye out for “wind” from a/c or heater or fans as that will introduce a variable you cannot adjust for. I shut down the a/c when reloading.
The 40.2 numbers are most definitely wrong.
Those 5 shots with the velocity you have listed would give a SD of 267.
If the MagnetoSpeed gave you the SD of 5.54, then it read the speeds correctly and either displayed them incorrectly or you misread them.
Thank you for the info. I will look at the data again…additionally I am going to rerun the test And look closer at the throw numbers to test consistency there as well.
Went through some of these pages and looked at some results from others. I am not getting the speeds others are getting from h4350. I'm still pretty new to reloading. My barrel is 24" and has around 260rds through it. Staball seems to get good speeds but everything I read, people are saying h4350 hangs right with staball. Do I need to venture above the book max to find a good load in the mid 2700's? Here's my data from today.
What rifle/barrel?? Hammer forged like Ruger RPR & Tika's can be -100fps vs a Barlein etc.
Hopefully someone with first hand experience on a Howa will chime in.
I just want to make sure your not trying to match the speeds you've seen posted here for SS cut or buttoned barrels. You wont get there with a hammer forged barrel typically.
I not sure if Howa's are hammer forged, but suspect they are & may be on the slow side, but not sure about Howa.
Tika's are notoriously slow.
2700 from your 24" with 140's is pretty decent 41.8 - 42.2 H4350. RL16 would get you a few more FPS but Alliant's pricing is just stupid right now.
If it's just the make of the barrel then that answers my question pretty well I think. I was hoping to get the h4350 to match the speed of staball. I've already seen the temperature affect the velocity using staball and was hoping to have a more temp stable load. Oh well the staball does shoot good out of this rifle.
Similar H4350/140 ELD speeds out of my Howa 6.5 24"
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How many rds do you have on it
recorded those speeds after 100 rounds of factory ammo.
Those are with Hornady Brass
With Peterson Brass 41.5gr got me 2720 avg
What distance are you shooting to need more speed?
I was shooting 1000Y with my low node 2667fps with a 147 ELD-M.
If you don't need the speed save your barrel and components.
Used to be accuracy and predictability were the primary concerns. Now I am not so sure for some.
Yes sir,"not sure for some" I call it "magnumnitis" , from trying to make a 45 Magnum out of a 45 Colt , that was some 50 years ago to using a chronograph strictly for bragging rights " and not concerned about hitting anything smaller that a 5 Gal. bucket at 100 Yds , which they will tell their buddies was 2000 Yds. All the while counting on gravity to hit the ground. Who was it that said "Only accurate rifles are interesting"?
….There’s a difference between trying to turn a CM into a PRC, and being new and trying to figure out why your results don’t match the common results or factory ammo.
I get a little more speed out of staball than 4350, my 4350 loads always ran a touch slower than the “standard” 2750 with 140s unless I pushed past book max. I run 130/136s now.
I get a little more speed out of staball than 4350, my 4350 loads always ran a touch slower than the “standard” 2750 with 140s unless I pushed past book max. I run 130/136s now.
People need to remember barrel length too. Some use short barrels and want all the velocity. A longer barrel will get you more velocity so plan accordingly with what you want and need.
Well said! Wasn’t that old man Hornady? I knew that once, but my memory is very suspect these days.
At first I thought it was P.O. Ackley , but it was Col. Townsend Whelen
Awesome! I have seen a video where his recorded voice is saying exactly that (I think) or else someone else quoted him and I just have a memory of the voice. LoL one or the other
I am looking forward to the release of the 100 gr ELD-VT from Hornady for coyote hunting. Going to post data for a 12.5" Christensen and 24" Proof. Both suppressed. If anybody gets ahold of them before me, please post your findings. I want to find a good temp-insensitive powder since I'll be using it year-round that still provides enough speed for the short barrel of the Christensen.
Berger 153.5
Lapua virgin brass
40.5 H4350
CCI 450
2.1950 BTO (80 thou off)
26" Proof Prefit.
Hoping to see this tube speed up a touch and get the ES a little lower.
Groups are at 200 yards. Bigger group with the two flyers is off a tripod.
Lapua virgin brass
40.5 H4350
CCI 450
2.1950 BTO (80 thou off)
26" Proof Prefit.
Hoping to see this tube speed up a touch and get the ES a little lower.
Groups are at 200 yards. Bigger group with the two flyers is off a tripod.
What make/model barrel did you settle on? I've scoured for months looking to snag a 7.5t in stock or slightly used. May have to get one spun up talked to Owen at Front Range may go that route.
So I'm building an AR-10 this month off a Craddock Precision RTR 22" 1:8 twist 6.5 creed barrel
I'm mostly going to use what i can find obviously, which is mostly N555, Staball 6.5, some H4350 and if I can find some, I'd love to use RL16.
The factory ammo i have on hand to break in the barrel and get some numbers with is all from Berger, 130gr OTM and 144gr hybrid(had a deal from hunts long range).
For those shooting a semi auto, what's your go to loads and starting points to work from that you've found to work well?
I'm mostly going to use what i can find obviously, which is mostly N555, Staball 6.5, some H4350 and if I can find some, I'd love to use RL16.
The factory ammo i have on hand to break in the barrel and get some numbers with is all from Berger, 130gr OTM and 144gr hybrid(had a deal from hunts long range).
For those shooting a semi auto, what's your go to loads and starting points to work from that you've found to work well?
Sorry, it's 6.5 creedmoor with 140 grain Hornadys
40.5gr H4350 and Berger 156gr EOL’s were averaging 2688fps for a PRS match last weekend. Went 11/11 on MOA sized targets at 500(2)/700(2)1000(3)800(2)600(2). Largest wind hold was only .3mils left at 1000yd and the rest were .1mil. The 156’s and a 7.5 twist barrel are turning out to be a very consistent combination less than 900rds in to my new Bartlein. Spotters said I printed a 2” 3 shot group on the 1000yd plate.
Precision & Group Size – Statistics for Shooters Part 3
This article is going to dive into the most effective ways to quantify the precision of a rifle and...
precisionrifleblog.com what velocity are you getting with the 140's at that charge range?
2650 - 2735
ok thats about what i expected. seen some guys get around 2700 with the 144's and around 2800 with the 130 grain bullets so that falls in line with my hopes
Magnum. I only run 450’s in all my short action calibers
Thanks for the info.
I don't have a tremendous primer stash....but stocked up as I could prior to the BLM rioting / covid era.
My thoughts then were to secure components for my handguns and AR-15 with some additional LRP for my hunting rifles.
Long range steel banging wasn't in my wheelhouse at that time....but certainly is now.
I was hoping to be able to use standard small rifle primers in order to cut down on the money currently going to new glass, range finder, triggers, etc.
Sounds like I need to put SRP-Magnums on the shopping radar, too.
Well Men, as of February 3rd, I got back in the 6.5 Creedmoor business. Sold my last, the RPR and guess what. The buyer was a non-payer. Called, sent emails, even was able to talk with his employer, who said his mother also worked for him and he would get to him and get right back to me.
Never heard another word, from any of them. So, I sent a final notice to the buyer, gave him another week. The week passed without a word so I closed out the sale as a no-sale with gunbroker. I gave the buyer an ”F” rating on gunbroker, applied for credit for the sales tax and handling fee that gunbroker charged me for the sale and did in fact get that charge returned.
And, in a few weeks, I will have a picture of the new RPR. Complete rebuild making it as light as possible for Brenda to shoot. Gonna look good, and hopefully with its new Proof barrel, shoot as good as it did before. Give y’all a hint, won’t be red. Getting back to the earth.
Where should I go from here?
I only had 100 bullets and I had lost my previous data.
Barrel is a 24” 1-7.5” twist IBI
OCW test Nosler 140 RDF, H4350, BR-4, Lapua brass.
If you click on the target it will bring you to to photo bucket with better resolution.
View attachment 8365379
I'd say 40.0 gr. and see where E.S. and S.D. are in relation to MOA and velocity . Just MY personal observation . Try #10 rounds and see if it's consistent .
