6mm Dasher

[Sheldon N]

Quickload puts those loads at right around 70k PSI if you have a 30" barrel, closer to 75k PSI if you are using a 26" barrel.

I've shot 115's and 110's and pushed speed too, it's certainly possible and Lapua/Alpha brass is tough stuff and isn't necessarily going to blow up. It's still way over pressure, you'll lose primer pockets, it won't run well in dusty or rainy conditions, and the brass won't hold up.

I don't mind if someone wants to do that if they feel comfortable and are informed. Just don't want the average reader to scroll through this thread and think that's a safe and attainable speed with those bullets.

 

[45-90]

Quickload puts those loads at right around 70k PSI if you have a 30" barrel, closer to 75k PSI if you are using a 26" barrel.

I've shot 115's and 110's and pushed speed too, it's certainly possible and Lapua/Alpha brass is tough stuff and isn't necessarily going to blow up. It's still way over pressure, you'll lose primer pockets, it won't run well in dusty or rainy conditions, and the brass won't hold up.

I don't mind if someone wants to do that if they feel comfortable and are informed. Just don't want the average reader to scroll through this thread and think that's a safe and attainable speed with those bullets.

I have Quickoad ... So how would you know?
It's only a guesstimate.
The bullets coated?
You don't have the actual case capacity.
You don't have the powder used.
Plus Alpha brass will handle 70,000 psi.
And the 6 Dasher operates at 65,000 psi.
A lot of variables not even considered, in your erroneous statement.
Others have done so with different powders....it's up to the individual as to what accuracy, velocity combination is right for their 6 mm Dasher, to decide for themselves.
I rarely run less than 2950 to 3020 with Berger 108 target loads that shoot tiny groups.
I'm running a Bartlein 5 R 7.5 twist 28" M24 profile, chambered by me, with my own reamer.
So a new barrel can be ready to go in one day.
The 110 gr SMK at 3085 fps is an excellent LR load in my 6 Dasher, fast and accurate. So I'll continue to use it.

 

[giumau1]

Primer seating depth, CCI 450 and Alpha OCD brass specifically.
Did anyone try seating depth tests? Flush, up to “feel it contact the pocket bottom” Light Crush, heavy crush? Where did you get best results? Thank you

 

[Juicymeat]

Anyone willing to share their loaded neck diameter using non turned alpha brass? I searched and saw .269" in one post a while back but wanted to see what other people are getting.

 

[J McGriddle]

I can check mine later tonight.

 

[45-90]

Anyone willing to share their loaded neck diameter using non turned alpha brass? I searched and saw .269" in one post a while back but wanted to see what other people are getting.

Checked a bunch over different bullets, .2692" to .2696" was a good average with only one light varmint bullet going .268" and a few up to .2702" for unturned Alpha brass.

 

[morning would]

As my barrel is starting to fade away, I’ve started shooting lighter bullets out of it as an experiment of what I can get to work. Turns out that I wish I had a bunch more 80gr Berger flat bases. With 31.5gr of 8208 in a 26” barrel, they will shoot consistent 1’s and 2’s at 3300fps. Damn near no recoil and accurate to 750 without even trying. New Criterion barrel is gonna go on in the next couple of weeks and going to try and shoot 106ATips as much as possible. Gonna end up with about 2800 rounds out of this current one. 80% of those were 108btt’s at 2950.

 

[UndFrm]

Would anyone be able to share the load for a 115 bullet, either Berger or DTAC with Varget? Someone suggested to try the 115 with a 7.5 twist but I'm unsure about the load. Maybe start at 31 and go from there?

Should mention, new to reloading so I don't want to blindly go experiment.

Thank you

 

[BoilerUP]

Would anyone be able to share the load for a 115 bullet, either Berger or DTAC with Varget? Someone suggested to try the 115 with a 7.5 twist but I'm unsure about the load. Maybe start at 31 and go from there?

Should mention, new to reloading so I don't want to blindly go experiment.

Thank you

Going through the pages in this thread will show you some DTAC loads, note many of them have longer than .104 freebore.

If you're new to reloading, the Dasher "easy button" is 32.4gr Varget under a 105-107. Cutting that by a grain and working up is a safe place to start.

 

[Lightning8]

Would anyone be able to share the load for a 115 bullet, either Berger or DTAC with Varget? Someone suggested to try the 115 with a 7.5 twist but I'm unsure about the load. Maybe start at 31 and go from there?

Should mention, new to reloading so I don't want to blindly go experiment.

Thank you

I run 115 DTACs in 6 Dasher. Alpha brass. CCI450s. Suggest you start at 30 grains of Varget. I tried 30, 30.5, 31.0 of Varget with 115 DTACs - all shot great groups with low SDs. I chose 30 grains of Varget with 115 DTACs because I want to "see" impacts so choose lowest speed/recoil. Proof 7.5 twist prefit, Competition Contour, 26 inch. 30.0 grains Varget = 2705 and SD 4.9 sample size 5.

 

[UndFrm]

I run 115 DTACs in 6 Dasher. Alpha brass. CCI450s. Suggest you start at 30 grains of Varget. I tried 30, 30.5, 31.0 of Varget with 115 DTACs - all shot great groups with low SDs. I chose 30 grains of Varget with 115 DTACs because I want to "see" impacts so choose lowest speed/recoil. Proof 7.5 twist prefit, Competition Contour, 26 inch. 30.0 grains Varget = 2705 and SD 4.9 sample size 5.

Have you also tried 105s? If so, which one did you prefer in terms of accuracy?

Thank you

 

[Lightning8]

Have you also tried 105s? If so, which one did you prefer in terms of accuracy?

Thank you

I ran 105 Berger Hybrids over Varget in previous barrel. I had DTACs left over from previous 6XC barrel so I am running them for this barrel. I wanted to see if the 115s would make any difference seeing impacts. For me, they are both accurate. I got tired of chasing Bergers but they seem more available now.

 

[45-90]

Load notes show 115 DTAC in 6mm Dasher 31.5 gr H4895 = 2894 fps
35.6 gr 2000 MR =2997 fps
35.8 gr 2000 MR = 3022 fps larger S/D

Nosler 115 gr 31.2 gr Varget = 2804 fps
Nosler 115 gr RL-15 31.5 gr = 2848 fps

The 115 gr DTAC with 2000MR load in a ladder test at 100 yds showed good possibilities at several higher velocity points in this 10 shot group, going to the top velocities S/D were higher.
H4895 was a small group shooter at 2800 fps.
6.5 Staball is fastest, and fairly accurate, at 3020 fps.