i have some 45 colt brass that was loaded as cowboy/practice loads from the manufacturer. i believe they had a velocity somewhere around 900fps, and were flat nosed lead. the brass have a crimp or some type of indentation around the case about 1/3 down from the rim.
my question is: can these cases be loaded with fmj bullets and run at higher velocities/pressures? my concern is that ring around the case being a weak point and causing a problem at higher pressures. i haven't sized them or anything yet, but it doesn't look like that indentation will be removed with the sizing die.
thanks for any feedback.