wally
Member
I'd get rid of them if it wasn't "break-in issue" that resolved, or was limited to only a single ammo brand. Cheap is generic and biased term. I'll tolerate some limited ammo sensitivity in sub-compacts ( i.e. needing 124gr instead of 115gr) as these are always running on the edge of the functional envelope as a trade off for being very small for their caliber, but if won't run with FMJ I'd not bother trying expensive JHP. YMMV.I've had both CZ and HKs fail to run cheap 115 grain ammo well. Bad guns then?
My HK USP 9mm ran fine on Wolf WPA, CCI Blazer, & Monarch brass all of which I believe were 115gr. I usually run a box of several brands of "cheap" factory (not "factory reloads") 115gr ammo before trying my reloads in a new pistol, which is generally what ends up being the bulk of my shooting. I use the same load recipe for all my guns of a given caliber, occasionally making minor adjustments (usually in OAL) when a new gun is added. Been a long time since I've needed a change, most recently was when I started shooting suppressed with 147gr FMJ or plated bullets, needed a bit more powder to reliably lock back my Glock 17, but still well under max load.