Written by Sierra Ballistic Technician Robert Treece
There are not a lot of jacketed bullets out there that will predictably open up at a sub-sonic velocities. Varmints being smaller (less resistance) only makes the equation for a humane dispatch more difficult. I’d suggest one of our a Hornet bullets They have the thinnest jacket and a rather “blunt” nose to transmit shock. They are available in 40 (#1200) and 45 (#1210) grain weights. When possible, bullet placement into the heavy bones of the shoulder or headshots will work best.
Doubtful even a fast twist barrel that’s smooth and reasonably clean will have a problem with the projectile coming apart in the air at sub-sonic velocities.
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