6mm Dasher

[giumau1]

Primer seating depth, CCI 450 and Alpha OCD brass specifically.
Did anyone try primer 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.

 

[TylerN]

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.

If your running alpha brass cut that load down another 1.0 gr at least and work up. I run 112gr match burners with 31.4gr of Varget in Alpha brass. I think Lapua holds about a grain more.

 

[UndFrm]

If your running alpha brass cut that load down another 1.0 gr at least and work up. I run 112gr match burners with 31.4gr of Varget in Alpha brass. I think Lapua holds about a grain more.

To be clear, I should start with 30.4gr and workup, for 105 projectiles?
On a side note, I have been wondering if I should also try the 115 Dubbs, any experience with it?

Thank you

 

[TylerN]

To be clear, I should start with 30.4gr and workup, for 105 projectiles?
On a side note, I have been wondering if I should also try the 115 Dubbs, any experience with it?

Thank you

That would be my plan with alpha brass. You will probably find a load for 105's in the 31.x - 32.0 range but it's worth it to start low and work up.

I've never tried 115 Dtacs because the availability used to be poor. I wouldn't hesitate to try them now. I shoot the Barnes 112gr Match Burners and choose them over 105's hybrids and 107 SMKs. I shoot a lot at 700y or greater and the heavier projectile with a better BC makes spotting easier. I expect the 115 Dtacs would perform similar to the 112.