I have had better luck with LC brass than I have with commercial, I get better longevity out of it and the price is right. The only down side is that sometimes range pickup brass has been fired in an rifle with an excessively large chamber and it does size down enough at the base to chamber in a smaller chamber - in that case just toss that piece.
Get a primer pocket reamer that fits into an electric drill and it makes opening the primer pockets quick and easy.
drover