I have a 16" 1x7 twist barrel. I made up 3 small batches of cartridges using 62gr Hornady (3037B bullets) and H335 powder. 3 velocities. I shot at a 3" target at 100 yards using a 1x6 optic.
Some weirdness ensued but I think I'm on solid ground.
- The first and slowest batch made an acceptable grouping, about 1.5 MOA.
- The second batch was mid-velocity and had a wild flier and 2 faulty primers. I used CCI #41 military primers. One cartridge fired on the second attempt, one absolutely failed. Lousy grouping.
- The third and fastest batch made a slightly sub-MOA grouping.
- I shot a 62gr commercial batch as a "control." My 3rd/fastest batch was equal or slightly better than the commercial ammo.
The faulty primers really surprised and irked me.
Some weirdness ensued but I think I'm on solid ground.
- The first and slowest batch made an acceptable grouping, about 1.5 MOA.
- The second batch was mid-velocity and had a wild flier and 2 faulty primers. I used CCI #41 military primers. One cartridge fired on the second attempt, one absolutely failed. Lousy grouping.
- The third and fastest batch made a slightly sub-MOA grouping.
- I shot a 62gr commercial batch as a "control." My 3rd/fastest batch was equal or slightly better than the commercial ammo.
The faulty primers really surprised and irked me.