I'm modifying my Impact to reach about 140 fpe and needed a heavier slug to reach my goal. I'll start testing with the 66gn NSA FBHP but I'd rather have a 70gn flat nose.
I had to mill about 2mm out of the original Sideshot aluminum magazine for the longer bullet. The back wall of the magazine should still be 1mm thick.
I thought I'd post a pic just in case anyone was wondering how heavy they could go. You can't feel the machining marks and the slugs slide easy.
I had to mill about 2mm out of the original Sideshot aluminum magazine for the longer bullet. The back wall of the magazine should still be 1mm thick.
I thought I'd post a pic just in case anyone was wondering how heavy they could go. You can't feel the machining marks and the slugs slide easy.