I shot Wolfe in my Springfield 1911 untill I started having problems with cases sticking in the chamber. Turns out Wolfe ammo has a polymer on their steel cases and when the cases heat up, from a hot chamber maybe, the polymer turns to a glue like substance and MAY stick in your chamber causing the casings to stick and eventually could tear in half. Only happened 1 time for me and that was enough. No more Wolfe in anything. I haven't tried the new Wolfe brass. SLOW IS SMOOTH, SMOOTH IS FAST.