sean_stw Posted October 26, 2018 Share Posted October 26, 2018 1 hour ago, OPENB said: Are you guys shooting shorty guns or lots of barrel holes? I was at 170PF with 10.0 AA7 under a 115gr. Hornady thru my 5.5"KKM and Binary Engineering comp., no holes. My barrel must be a little slow i guess because i have a 5.5" kkm barrel no holes just the comp and with 10.2gr of aa#7 and 115gr zero jhp im only getting about 167pf if im remembering correctly Link to comment Share on other sites More sharing options...
Chillywig Posted October 29, 2018 Author Share Posted October 29, 2018 (edited) On 10/26/2018 at 9:55 AM, OPENB said: Are you guys shooting shorty guns or lots of barrel holes? I was at 170PF with 10.0 AA7 under a 115gr. Hornady thru my 5.5"KKM and Binary Engineering comp., no holes. Both my guns are 5.5 KKMs with holes. 2 biggons in one and 3 smaller in the other. The gun with three smaller holes runs the same loads across the board about 3-5 PF higher. I am using MG bullets. I am sure there are some variations with PF due to jacket thicknesses too - MG vs Zero vs Hornady Edited October 29, 2018 by Chillywig Link to comment Share on other sites More sharing options...
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