For light plinking I have been using the cheap 150gr projectiles and IMR 4895 with great results. I also form my own brass from 7cent 30-06 cases. I keep these in a locked case that is labeled "8mm Mauser with 30-06 head stamps". I am weird about marking them - when I have any split or worn out brass I also smack it with a hammer before it goes in the scrap bin.... I never want anyone to use my rejects...