I have a DW Heritage that I bought used 7 years ago. I'm going to shoot it in a USPSA match in 10 days. My ammo is some 45 ACP I hand loaded when I was new to reloading. About 1 in 10 isn't going bang with Winchester LPPs. Some have high primers. But high primers doesn't seem to be correlated with failure to fire. If I can't get it any better than this, I'll still shoot the match. I normally shoot my Shadow in Carry Optics. But we are all going to shoot Single Stack this month. Is there a part I can, probably, buy locally, that would get me more reliable ignition? I would be happy to go get a new hammer spring or a different firing pin. But I don't know what to buy.
