Thread: Who's seen a rimfire do this before

I'd give it a good clean with foaming bore cleaner and really inspect it. If it's not bulged and you can usually feel it with a brush then I'm picking flared or damaged muzzle, stuffed headspace which is sticking the pill in sideways and it's coming out rooted, or some version of bulges at the critical point just behind the muzzle. If it's none of that then you might need to be looking at casting up .175 bullets.

Can you recover a pill? Wet phone books... That will tell you a lot about the engraving of the rifling, and if there ain't any...