Good afternoon good folks! I just finished working a load for my Ruger 450 Bushmaster. I have yet to see any real pertinent data on 300 grain lead bullets, so I thought I would share. I am getting 1.25” groups @ 100 meters. Use at your own discretion.
Missouri Bullet Co. .452 diameter, 300 grain, 18 brinell, coated flat point lead bullet.
Starline brass trimmed to 1.69”
CCI 400 Small Rifle Primer.
34 grains Hodgdon H110 Powder.
OAL - 2.065”
The pic is from my chronograph and gives all pertinent detail.