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Range results, 8" &16", RE7, LilGun, Blue Dot, AA9, SR4759, & AA1680
All shot with the can on, 52 degrees, 65% humidity:
16" Noveske factory upper, carbine buffer spring, H buffer:
AA 1680....
10.3 grains, Hornady 225, 2.120"
1100.6 fps 10 shot average, ejected but didn't fully strip next round
10.6 grains, Hornady 225, 2.120"
1124 fps 24 shot average, these were the first rounds through the new upper. Accuracy at 100 was fairly good, putting all 24 shots into 1.25". The first 13 didn't cycle, but since I was breaking in the barrel as I went, I scrubbed the bolt and chamber. After that, it started cycling for about 5 shots, then went back to ejecting without stripping a new round.
11.2grains, Sierra 240 SMK, 2.120"
1115 fps 3 shot average, cycled the action
N110....
9.6 grains, 1182 fps 3 shot average, did not cycle or eject.
8.5" Pacnor, pistol port, pistol buffer spring with H buffer, Hornady 225, 2.120" for all shots below:
N110.....
8.9 grains, 1041 fps 3 shot average, did not cycle or eject
9.3 grains, 1073 fps 3 shot average, did not cycle or eject
Reloader 7....
9.0 grains, 855fps 3 shot average, didn't cycle or eject
9.5 grains, 889 fps 3 shot average, didn't cycle or eject
10.0 grains, 915 fps 3 shot avg, didn't cycle or eject
10.5 grains, 876.......ejected, but didn't cycle.
When I looked down on the bench, there was unburn powder from each of these loads. I'll try it in the 16" again to see if I get better burn rates.
Lil Gun.....none cycled or ejected
8.2 grains, 1005 fps 3 shot average,
8.4 grains, 1055 fps 3 shot average
8.8 grains, 1061 fps 3 shot averave
Blue Dot, 190 Hornady Soft points.....TOO HOT
6.5 grains, 960 fps 3 shot average, primers looked like they were about to pierce so I didn't shoot the 6.7 or 7.0 grain loads. I may try it again with lighter bullets.
AA9......none cycled or ejected
8.2 grains, 988 fps 3 shot average
8.5 grains, 1012 fps 3 shot average
SR 4759......none cycled or ejected
9.0 grains, 985 fps 3 shot average
9.5 grains, 1006 fps 3 shot average
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