I have several 45 colt revolvers and have shot thousands of these bullets they shoot very well and I've had no problem with leading. The loads I use run between 1300 and 1400 ft per second depending upon the revolver. The accuracy is excellent.

I have been shooting these thru my Ruger Blackhawk, Ruger Redhawk and my Henry Rifle. No leading and great accuracy. Deer dont seem to like them much though!

I’ve been loading these bullets over a stiff (but not insane) load of 2400 for my 7.5 inch Blackhawk. I love the big meplat and accuracy these offer. They’re my practice load and my carry load when penetration is in order. If you don’t live where grizzlies do, you don’t need the biggest eargenspittenloudenboomer there is. These fill the bill where I am.

Bought these 255 SWC's to shoot thru my Charter Arms Bulldog 45 Colt snubby. What a treat! Accurate and no leading. I made up 6 different test loads as I just bought this revolver. All 6 loads did great. You guys make a great bullet. I'll be back!