hello, everyone, i have recently bought my self a armscor 9mm,, clone of a CZ28. not the first time i have ever used a gun, but i am new to reloading. i have bought my self, 500 empty shells without the old primers on them. my Q. is can i tumbler them without the primer???. 2ND. Q. is i have 400 teflon coated heads 125gr that i'm going to use, what the correct powder gr to use ??. if anyone could help me out.. thanks..