WB
I was surprised in the SS at the .240’s velocity
Sunday, April 19, 2026, 17:28

Of course you Lois quite a bit in the revolver. More the smaller caliber you go. To answer your question. You’d want the most lightly constructed “varmint” type projectiles you can find. The Barnes “Varmint Grenades” are good examples. Even then you must understand they are designed to hold together at near 4,000 fps fired from a .243 rifle etc. your velocity will likely run 1800-2000 fps. Kind of like shooting a 6mm Remington rifle with a 600 yd. handicap. But it works and is a hoot!

I chose .255 for my revolver as it was easier to find cast bullet molds for the .25-20 etc. however there is less of a jacketed bullet offering. That’s where the .240 has the advantage, lots of 55-70 gr. Varmint jacketed bullets. Too heavy a jacket and it will act like a FMJ. Fiddling around to find out is half the fun. A 5-gallon bucket of sand is a great target backer and you can dig through to see what they are doing.