I have 120 rounds of CETME 7.62 FMJ that I got for a good deal. When I bought it I didn't realize it had corrosive primers. Is this stuff OK to shoot out of my rem 700 .308? The box reads CETME CSP-003 7.62mm 1962. I don't want to mess up my nice clean bore with corrosive ammo. If I clean it really good after each session is it OK?