rounds do you roll up and keep on hand? Unlike plinking rounds these only see the inside of a magazine a fraction of the time a year. For the last couple years 40 rounds, enough for 2 15 rd mags with arredondo extensions have seemed fine. This year I decided to shoot 'em up and darned if I didn't loose my data. Time to work up all over again, but this time I'm gonna mix in some tests with different primers and maybe some penetration tests. Wanna kill these ads? We can help!