I have cleaned media out of primer pockets since I started reloading some forty years ago, using a really small Allen wrench. I use a circular motion which ends up with the Allen wrench sticking thru the hole. I then spin the brass on the wrench which cleans out the hole itself. Works for me!

If we live long enough, we all have regrets. But the ones that nag at us the most are the ones in which we know we had a choice.

Doug