RE: Loose primer pockets?
I'll second what BC says. I've seen primer pockets get so bad you can push the primers in with your fingers and don't need a tool. In fact, I confess I've shot a couple that way. It worked with just a tiny bit of gas leak but basically they swell to fill the pocket same as always. But it's a dumb practice and I'm not goofy enough to do it any longer.
I'd suggest you shoot them this last time and drop them in the trash.
You can probably extend your case life by backing off the load just a bit. Case life varies directly with pressure.