39 gr blitzking seating and xbr 8208 info needed

[leo158]

Just as the title reads. I can not find or have been able to, any 35 gr bergers. It took me a while to find 39 gr BK. Now that I have I can not find data for the xbr. I tried varget at 28 gr and seat the 39s at 2.250 or with the compparator at 1.88. my groups at a hundred are triangle and about 1.75 inches, The triangle seems quite uniformed as from one whole to another.

I also tried 27.0 of xbr 8208 with all the same seat depth as above and also got the perfect triangle but with about a 2 inch group. Any input of max xharge for xbr and 39s or info on how to shrink the group.

The 35 gr bergers and the 32 gr sierrias I can get .33 5 shot groups at 100. Just never had the them triangle like the 39s and they pretty much grouped with very little work. The was almost touching when started to work on them. 39s are different to me. Thanks all, Dan

[fgw_in_fla]

http://www.imrpowder.com/index.html

Have fun.

Load data is in there a few clicks.

[leo158]

39 is not listed,40 gr vmax is. Sierria data does not list xbr 8208 powder on theirs.

[short round]

What cartridge ?

[fgw_in_fla]

Why not use the 40gr?

If I can't find exactly the same weight in the book, I go to the next weight up.

Never had any problems..

[leo158]

Why not use the 40gr?

If I can't find exactly the same weight in the book, I go to the next weight up.

Never had any problems..

Thats what I went by.