Just a thought; I would use 38 Specials pushing the bullet to it's most effective velocity (jacketed bullets should reach the "expansion threshold" velocity and cast should reach the velocity for good penetration and effectiveness on target). I see a lot of comments about using the most powerful, highest velocity possible from a cartridge for an SD round, but I'm in the "a good hit from a 900 fps bullet is better than a miss from a 1400 fps bullet" camp and my SD handloads reflect that.
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