Thread: Bulge buster 40SW

Originally Posted by bluemonsta

My own 0.02c

Don't reload 40 S&W and use in a factory Glock barrel, it doesn't provide enough support to the case. Plenty of photos on the internet of glocks and exploded cases in .40 S&W.

I use a G23 for IPSC, which has a Lone Wolf barrel in it which provides more support than a factory barrel. I always bulge bust my brass for it and also when I had an STI. Haven't had any issues yet but always visually inspect my sized, bulge busted brass before loading it.

Again this is just my 0.02c

I appreciate that early glocks had issues around not having enough support around the base of the case, But I am curious to know whether or not they addressed this issue and later barrels, as surely they would have addressed this problem? I have purchased about 500 cases and have noticed some of them have obvious bulges, however after Inspecting the cases fired from my glock I have not noticed any with bulges, however these have only been visual inspections. I know the barrel I have in my Glock 22 is not the original barrel and from what I was told it was from a gen three.

I appreciate that just by resizing my brass it will bring back the case to Near original size, which in itself will slightly stress the brass, how much extra would using a bulge buster increase that stress? Another silly question would be how much of an issue would be if I annealed the brass, admittedly a massive pain in the arse!

The only reason I bring up the annealing process is because I am noticing a massive variance in velocity I am achieving when I have run my load development over a chronograph, the only variation is the manufacturer of the brass, I am using a Dillon 550 press and have experienced some quite big variations in feet per second, and was wondering if this is a problem with using old brass that has been fired a number of times and that it has lost its neck tension? If that make sense.