I’ve got most of a 500-round box I bought about 15 years ago, (Remington?), brass-plated bullets, and lubricated.
It still shoots 100%.
The problem is that the lubricant has dried-out somewhat, and in a pump-action rifle I’ve got, after 10 or 15 rounds the empty case won’t extract; I have to push it out with a cleaning rod and clean the barrel.
Huh.
I'm shooting a Ruger 10/22 and a Ruger MkII pistol.
No issues.
The only lubricant on a cartridge should be on the bullet, not on the case.
Have you checked the extractor on the rifle? I guess if new .22 (if you can find it) extracts flawlessly then the extractor's good... and you say it works OK until a dozen rounds are fired... still and all, crud in the barrel from dirty ammo (Blazer fits that description) shouldn't hinder extraction.