Bear Creek Arsenal 16” Hvy profile carbine gassed barrel. .307” bore.
Test load 1: 5 rounds at 100 yds. 88°F
RCBS 7.62-130-SPT cast of COWW+2% tin. PC+GC and sized to .3085”-.309” they weigh around 140 grains. (Not heat treated)
PPU case (1F), 22.4 grains Re-7.
Primer- CCI 34 (7.62 NATO)
Va5= 1997 fps (Es=66, Sd=25.9)
These first five shots were used to get my scope on paper so no group size was recorded.
Test load 2: 5 rounds at 100 yds. 88°F
RCBS 7.62-130-SPT cast of COWW+2% tin. PC+GC and sized to .309” they weigh around 140 grains. (Not heat treated)
PPU case (1F), 22.4 grains Re-7.
Primer- WLR
Va5= 2002 fps (Es=71, Sd=27.4)
Group size= 2”