rick..................

Primers can be nasty critters which can create a lot of fouling........whether smokeless or black powder is being used. You need to keep those cases clean for reliable fit.

If you don't have any reloading equipment (ie a press and a tumbler), you can clean those .25ACP cases by soaking them in Cider Vinegar for 20 to 30 minutes, clean them out with a Q-Tip, and then drop them in clean water to neutralize the vinegar. Let dry and then re-prime & shoot. If you have a reloading press, resize those cases occassionally to make sure they continue to fit into your plug correctly.

If you don't have a press, I would suggest you pick up a Lee Hand Press and a .25ACP resizing die. Togther, those won't cost over $30 and you will Always be able to have reliable primed brass ready to go.