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OP here. Let's say that due to cats, kids and hippies the most feasible, affordable, humane and safe way to exterminate these minks is an illegally modified air rifle. What's better of these two cheap-ass rifles:
>.25/6,35mm at around 230m/s or 800fps
or
>.22/5,5mm at around 330m/s or 1100fps
The immediate joule is pretty much the same at about 50 (a .22LR has around 100 depending on brand). What is better at killing: lower caliber higher velocity, or higher caliber lower velocity? This is only intended for mink pest control, since if I got to choose, I'd pick a real rifle any day since it's more humane, but not possible given the circumstances.
