Hey guys, I've just put together a 7twist 22-250 on a 700 action. It is a 24" criterion remage barrel. And, I wanted to share some load data with everyone. Remember to load down and work up, as to chamber differences, so everything will be safe.
I worked exclusively with the 88gr eldm in lapua brass, with 3 different powders, all of which produces sub 1/2 moa groups.
H4350, h4831sc, h1000
H4350 produced the most speed @ 2956fps with my accuracy load. Started @ 33gr and worked to 35.5gr where I began to see an ejector mark. 34gr was my accuracy load.
H4831sc, to me, is the most accurate @ 2932fps with my accuracy load. Started @ 34.5gr and worked to 37.5gr where I began to see an ejector mark. 36.5gr was my accuracy load.
H1000 gave me the smallest sd of 4.1 and 2904fps with my accuracy load. Started @ 36.5gr and worked to 38gr, just began to crunch powder and hardly any room left. Luckily, 38gr was my accuracy load.
I worked exclusively with the 88gr eldm in lapua brass, with 3 different powders, all of which produces sub 1/2 moa groups.
H4350, h4831sc, h1000
H4350 produced the most speed @ 2956fps with my accuracy load. Started @ 33gr and worked to 35.5gr where I began to see an ejector mark. 34gr was my accuracy load.
H4831sc, to me, is the most accurate @ 2932fps with my accuracy load. Started @ 34.5gr and worked to 37.5gr where I began to see an ejector mark. 36.5gr was my accuracy load.
H1000 gave me the smallest sd of 4.1 and 2904fps with my accuracy load. Started @ 36.5gr and worked to 38gr, just began to crunch powder and hardly any room left. Luckily, 38gr was my accuracy load.