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Chillywig

Favorite powder for 9mm Major in open pistols

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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 

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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 by Chillywig

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