+1Blazer BRASS has been good ammo for me in my P-11 .
i work in an engraving shop and can tell you that aluminum reacts very differently to pressure then brass, it doest expand as easily as brass and is often times left with burrs. whether or not that means it is harder im not sure, but it does behave differentlydarkwriter77 said:Aluminum is harder than brass? This is news to me. I would've figured it was the other way around...