Id guess a single stack 15 rnd 9mm mag would be about 70% longer than a standard 9 rnd mag.
Seems reasonable. 14-15 rnds.
Id guess a single stack 15 rnd 9mm mag would be about 70% longer than a standard 9 rnd mag.
Seems reasonable. 14-15 rnds.
Not to my knowledge, no.
Add; the 9mm's a tapered case, the more ammo stacked, the less the follower angle is followed by the top most rds.
Educated guess says a mo' than 10 rd. magazine would be a nose divin' bitch.
Last edited by gaijin; 07-02-19 at 06:33.
A straight wall case like the .38 Super Auto would do well with an extended mag. I have long wished for one.
Not a gunsmith but IMHO, it's hard to design reliable mags for the 1911, and even more so for 9mm. It took a few years and the growing popularity of 9mm 1911's even to get to the point of moving beyond the traditional 9rd mag and having reliable 10rd mags available from several of the usual suspects (Wilson, Metalform, Tripp, etc). Even today you still hear about feeding issues with 10rd mags, but most of the better ones have been debugged and are reliable. Even if there was a super-extended 9mm mag, when you think about the history of the reliability issues as capacity increased to 10 rounds, I wouldn't trust it.
The Metalform, 10 rd. mags have been 100% in 6, 9mm 1911's.
I seat cartridges long (1.140", Zero/Precision Delta JHPs) and lengthen leades if necessary. I've found the longer COAL tends to feed more reliably in the 9mm 1911.
The 1911 was designed around a cartridge; the .45 ACP 230 gr Ball @ 1.260"+-.
While the new(er) 1911 mags have been designed to reliably feed the shorter Over All Length 9mm cartridge, my thinking is the longer I can load the 9mm, in a 1911, the better it has always
seemed to run.
So if you want the most capacity from a 1911 with flush mags get a .38 super or 9mm and if you want more with an extended mag get a .45.
Are there reliable 11+ rd mags in .45?
(Before its brought up I would not be interested in a double-stack 1911)
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