My LC9 slugs at .357. .355 124gr XTP and MG bullets (reloads) leave copper or brass streaks down the length of the grooves. After a 2 hour soaking with Butche's, at least the XTP copper is FAR easier to remove than the MG brass. Strangely, WWB or PMC factory FMJ ammo does not leave any streaks at all. Streaks are in both leading and trailing edges.
I've only been involved in shooting for a little over 4 years. This is the first gun I've had/seen that deposited visible copper, even after a single mag full.
Cast...fugetaboutit...even at .359 and after 40 firelaps. Different powders and charges have had no affect (cast or jackets). Same for harder/softer alloy. Severe leading from breach to muzzle. This is my 2nd 9mm that I'm batting zero with cast.
So I'm curious if .357 jacketed bullets are a good idea to try. I mostly shoot cast, so I'm stuck in better-too-big-than-too-small mode, but not so sure this applies to jacketed.
I've only been involved in shooting for a little over 4 years. This is the first gun I've had/seen that deposited visible copper, even after a single mag full.
Cast...fugetaboutit...even at .359 and after 40 firelaps. Different powders and charges have had no affect (cast or jackets). Same for harder/softer alloy. Severe leading from breach to muzzle. This is my 2nd 9mm that I'm batting zero with cast.
So I'm curious if .357 jacketed bullets are a good idea to try. I mostly shoot cast, so I'm stuck in better-too-big-than-too-small mode, but not so sure this applies to jacketed.