Hi All, I'm new to the Bren Gun. I'm running an old 1940 Inglis on Privi 150SP and 180 FMJ. It runs nicely on gas setting "1" (smallest dot). I'm getting about 2 out of 3 case mouths dented inward. I'd like to reload the brass 1 or 2 times. Is there any way to reduce the number of dented case mouths? Another topic: Does anyone shoot the steel case Wolf with the bi-metal case. I think this is just steel case with a copper wash. Thoughts? BTW, the gun is fun to shoot. Only rim-locked one magazine. I really like how small it gets when you remove the barrel. It fits right into a rather short case. Thanks, Grasshopper