Page 1 of 1
.45ACP Bullet Setback
Posted: Thu Jan 14, 2010 1:34 pm
by 7075-T7
I know this has been covered on the forum before, but I only saw info about the .40S&W. Is it something to worry about on the lower pressure .45? I have a winchester silvertip I've cycled a few times, and it looks shorter than the others (I've not caliper'd it yet).
Re: .45ACP Bullet Setback
Posted: Thu Jan 14, 2010 3:05 pm
by gemini
If it's just a "hair' shorter I'd go on and shoot it.....IF it's noticeably shorter, as in the ogive is almost gone (measure it), then use your own better judgement.
Remember, whether reload or factory, changing the cartridge over all length via bullet seating depth, effects the space in the case and
thus the pressure.
Re: .45ACP Bullet Setback
Posted: Thu Jan 14, 2010 6:14 pm
by The Annoyed Man
I've yet to actually see any bullet setback in a .45 ACP cartridge.
Re: .45ACP Bullet Setback
Posted: Thu Jan 14, 2010 9:16 pm
by MoJo
Setback is always a problem. In lower pressure cartridges it isn't big of a problem as in the higher pressure cartridges. I'm with Andy on this one if it looks too short don't shoot it. TAM .45 ACP will setback any straight wall uncrimped round is susceptible to setback.
Re: .45ACP Bullet Setback
Posted: Thu Jan 14, 2010 10:08 pm
by pbwalker
It happens to me on my 1911 quite a bit. If I cycle a round more than 3 times, it is noticeably set back.
Re: .45ACP Bullet Setback
Posted: Thu Jan 14, 2010 10:37 pm
by The Annoyed Man
MoJo wrote:Setback is always a problem. In lower pressure cartridges it isn't big of a problem as in the higher pressure cartridges. I'm with Andy on this one if it looks too short don't shoot it. TAM .45 ACP will setback any straight wall uncrimped round is susceptible to setback.
I believe you, I've just never personally seen any noticeable setback in a .45 ACP cartridge. OTH, I don't tend to recycle rounds that often.