Blast away with that Pakistani ammo. I've shot 800 rounds plus of it with no problem out of three different rifles, all dated to early 90's. I found it a bit on the hot side and mine is berdan primed, just as well since the brass is odd. On mine the rim seems to be thinned out some but it has never caused an issue. It does smell funky and runs real dirty. I sold the links on ebay for an average of $.04 each so don't throw them out.