Originally Posted by JOG
Originally Posted by jwp475
Originally Posted by The_Real_Hawkeye
Originally Posted by JOG
My vote goes to K-frames and avoiding 125-grain bullets. 2nd place goes to the L-frame Mountain Gun, but that's too specific.

Yeah, the 125 grainers are likely the main culprit for shorter service life in K-Frames. They tend to really wear away the forcing cone. When they first agreed to make the K-Frame in .357 Magnum, what most cops were using were 158 gainers at lower velocities. Likely these are easier on forcing cones .


The 158 grain bullets were in the 1450 FPS range when e M19 first appeared



It's not the velocity alone - the main culprit is the shorter length. The longer, heavier 158 grain bullets align the cylinder and forcing cone like a range rod protecting the forcing cone from radial stress. The shorter 125 grain bullets can pitch/yaw just enough to accelerate wear on the forcing cone, and the K-frames forcing cone with the flat spot on the bottom is the revolver's weakest link.

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Spot on


I got banned on another web site for a debate that happened on this site. That's a first