6mm Dasher

Changed my seating depth some since my first match. Same charge weight and bullet. First time printing a group at 300 yards. This 6mm stuff is so much fun, I have never bought so many different projectiles to test with. Shot some 103, 105, and 107s Sunday at 100 as well. All shoot extremely well. Plan on taking a doe with a 103eldx this season

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Yes, I'm sure it's in this thread somewhere guys...

If I want to resize and then seat, without using mandrel in my process;
What bushing would you use for Alpha Dasher OCD brass?

I use a 266bushing/2415mandrel/105Hybrids at 31.4(2208/Varget) now but want to try dropping the mandrel process.
Was thinking 267 and seat?

Input appreciated
 
Yes, I'm sure it's in this thread somewhere guys...

If I want to resize and then seat, without using mandrel in my process;
What bushing would you use for Alpha Dasher OCD brass?

I use a 266bushing/2415mandrel/105Hybrids at 31.4(2208/Varget) now but want to try dropping the mandrel process.
Was thinking 267 and seat?

Input appreciated

If i was dropping the mandrel I'd be going bsck to a FL sizing die... unless you're turning necks for consistent wall thickness, i dont like solely using a bushing
 
Yes, I'm sure it's in this thread somewhere guys...

If I want to resize and then seat, without using mandrel in my process;
What bushing would you use for Alpha Dasher OCD brass?

I use a 266bushing/2415mandrel/105Hybrids at 31.4(2208/Varget) now but want to try dropping the mandrel process.
Was thinking 267 and seat?

Input appreciated
Not apples to apples but with my SAC 265 bushing and Norma brass my neck ID is 0.239. I upped it recently to the 266 bushing (0.240 neck ID) and have yet to shoot those to test out.

I did test out a 0.241 mandrel expansion compared to my 265 SAC bushing only and I had better SD and accuracy without using the mandrel. Two 5 shot groups, so the data is limited.
With mandrel: 5.6 and 8.7 SD
Without mandrel: 4.1 and 3.0 SD

I'd guess you are on track with the bushing size and eliminating the mandrel. I assume you aren't near the max with a 31.4 charge but the pressure/velocity may jump up a bit depending on the shift is neck ID/tension. You may need to retune/test.

Cheers,
Toby
 
Jesus this thing is easy to load for. Norma brass, cci SRP, Berger 105’s, 1.762 BTO (.040 jump), and proof 26” barrel.

Loaded 7 different loads in .2 increments from 31.0 to 32.2.

Every group was very sub MOA, had 1 SD in the double digits, everything else was 5-8 SD’s. This was 32.2gr but I’ll most likely back off to 31.2 as it was 11/6 and shot fantastically. Velocity was 2817 with that load and will just make the barrel live longer.

Definitely happy I decided to give this round a try.

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Is anybody using Peterson 6br norma brass in a dasher ?

Im in the process of gathering components for a new build and I was thinking g about picking up some Peterson brass from grafs since I'm already getting some other stuff there.
 
Just got back from shooting these 95 TMK's with 32.5gr Varget.. They shoot really well as I expected from past experience.

I loaded 50rd up with freshly annealed and sized 2x Alpha brass. Loaded them to 0.015" off the lands

28" PVA Osprey 1-7
6 Dasher 0.110FB
TL3

95TMK
2xAlpha brass
CCI 450
0.015" off lands
32.5gr Varget

3107 SD 7.7

I scrubbed the barrel clean with Thoroclean at the 100rd mark this morning before taking it out..

Those 2 groups on the 3rd line up from the bottom on the below target were the first 2 groups down the clean cold barrel.

Then I went back and start working left to right bottom row, changing tuner settings and working up row by row.

I found a promising tuner setting on the top row middle 2 groups measured in the 0.1's... Nothing formal or scientific about todays outing, just shooting 2 groups and turning the tuner 5 lines then shooting 2 more groups..

Ill now do a mini load workup and seating depth test with this tuner setting and see if I cant dial this into one hole groups... This is about 100fps faster than my 95TMK hottest 6BR Varget load... I didnt have any pressure signs today.


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Mind sharing the OAL of the 95tmk/dasher here?