[Seajay]

I recently purchased a ProMag 15 Round Magazine for my Colt 1911. I knew from reviews that it required some work to function properly, however, I have not been able to find a diagram/instructions on how to make it work. The problem right off the bat is that it wants to force a round in a downward angle, instead of up.

I've done a search on here and only came up with a few mentions of it, but no actual use, I wonder why... If anyone has come across this one here and has a link, I would very much appreciate it.

I have a Colt 1911 MKIV Series 70 and was curious if the make has anything to do with how these aftermarket mags work.

I only intend on using the 15 Rd. mag at the range, as well as, loading it with nothing but FMJ rounds. It would be fun at the range, but safety comes first.

Any help would be appreciated,

Thanks.

 

[TaxPhd]

I recently purchased a ProMag 15 Round Magazine for my Colt 1911. I knew from reviews that it required some work to function properly, however, I have not been able to find a diagram/instructions on how to make it work. The problem right off the bat is that it wants to force a round in a downward angle, instead of up.

I've done a search on here and only came up with a few mentions of it, but no actual use, I wonder why... If anyone has come across this one here and has a link, I would very much appreciate it.

I have a Colt 1911 MKIV Series 70 and was curious if the make has anything to do with how these aftermarket mags work.

I only intend on using the 15 Rd. mag at the range, as well as, loading it with nothing but FMJ rounds. It would be fun at the range, but safety comes first.

Any help would be appreciated,

Thanks.

Seriously? I'm shocked that anyone has ever got one of those to work properly. If you want extended, stick with proven 10 round designs. If you want/need more than that, you need to go to a hi-cap pistol.

If you get it to work, consider yourself lucky.

 

[Seajay]

The ones I have read that work have Springfield or Kimber 1911, which made me scratch my head since I thought the design was universal when it comes to magazines. Then again, they are also stating that things get hairy around 13, the last two jam. I'm going to get in touch with a local gunsmith to see if he can get this thing dialed in. For $17, the shock value was worth it, but if we can get it to crank out all 15 rounds, then I'll be sure to post a "how-to" so others can enjoy.

And what brand are you thinking for the 10 round? I have a couple 8 round ProMag and they haven't jammed yet (Knock on wood)...

 

[csireeves]

I like my Chip McCormick Power Mag 10 round mags. Now, I've only fired maybe 50 rounds through them before having to send my Champion Operator to SA for thumb safety issues, but those 50 were flawless.

 

[Joe40]

I have several 11 rd MegGar mags that I got a few years back and they work with all my 1911's. Haven't seen any 11 rd mags in a while. Guess I will keep them.

 

[Seajay]

I do like having longer time between reloading magazines, I saw a 40 round drum on a 1911 and heard it was a POS, but still, there are many things to do to a 1911, I just thought having a functional 15 Rd. mag would be fun...

I'm going to look into 10 Rd. mags.

 

[jtq]

Pro-Mag has one of the worst reputations of any magazine out there.

The 1911 was designed to work with a 7 round magazine. The farther you get away from 7, the less reliable it is likely to be.

The combination of a 15 round mag and made by Pro-Mag is probably the worst of both worlds.

Here is a worthwhile article from the late Mr. Camp's blog.
http://hipowers-handguns.blogspot.com/2010/11/what-is-best-7-or-8-shot-1911-45-acp.html

 

[Seajay]

Pro-Mag has one of the worst reputations of any magazine out there.

The 1911 was designed to work with a 7 round magazine. The farther you get away from 7, the less reliable it is likely to be.

The combination of a 15 round mag and made by Pro-Mag is probably the worst of both worlds.

Here is a worthwhile article from the late Mr. Camp's blog.
http://hipowers-handguns.blogspot.com/2010/11/what-is-best-7-or-8-shot-1911-45-acp.html

Good read, guess I'll stick to the 7 round, and maybe 8 if I feel adventurous.

Thanks for sharing.

 

[superdude]

nosedive is normal. it's undesirable, but normal. there are tons of threads on this. tons!

here's the deal with nosedive: load rounds in your magazine. notice that as you load more that a gap appears between the front of the top round and the one under it. as you load more rounds, the gap gets bigger. This gap allows the nosedive, hence the name nosedive gap. the bigger the gap, the greater the potential nosedive. and no, you can't reduce the gap once you get to about 8 rounds, so don't waste you time trying - search for and find other posts of people who have tried and failed, and failed, and failed. there's also no known way to stop the nosedive. it's just mechanical forces at work. by the time you get 15 rounds in those single column mags nosedive gets severe. again, it's just mechanics.

follower design influences when the gap appears and how big the gap is until you get to 8 rounds. after that, the gap is the same size no matter what follower design you have.

that's the awful truth about nosedive in single column magazines. that's why we don't all have tons of those high capacity mags around. 10 rounders work okay most of the time with hard round nose bullets (the best design to fight nosedive) but as capacity increases nosedive gets worse and reliability falls apart. that's why even the quality manufacturers aren't making the 15 rounders. they know they can't get around the nosedive issue. it's just mechanics.

 

[Seajay]

Ah ha! That makes complete sense. I'm going to stick with 8 rounds max, as I haven't had any issues yet and have only fired about 500 rounds between the two mags. If I want more rounds, maybe I'll invest in a smaller caliber handgun. Still, you can't help but smile and shake your head when you see the 15 rd mag sticking out of the 1911.

 

[schwartzint1]

I have never had a Wilson combat ten round mag fail. Ever. I shoot it out of full size and even a few times out of my 3" 1911s. Ten is plenty to have fun with at the range!