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I have a 186 series Mini-14 that from day one had issues running rounds with promag magazines, but shoots fine with factory mags.

I know of a few more folks that have this same issue.

I was wondering who has success with after-market mags in the earlier series rifles?

Has anyone had any luck tweaking the Promag steel mags to run reliably?

I love this gun, but it is one of the few mag-fed weapons I have, or have had, that sucks with aftermarket mags.
 

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Yeah, Mini's are notorious for being unreliable with after market mags. I've tried them. Now I use exclusively Ruger mags. No problems. I know it's tempting because after market mags are so much cheaper. But save yourself the headache.
 

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Ruger .44 Carbine, Security-Six, Service-Six, Mini-14, .30 Carbine Blackhawk
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I have a 182-series Mini-14. that I bought used in the late 80's. I have 6 magazines

1x5rnd Ruger - bought at a gunshow because being in Texas,
I didn't know they made one that small. :ROFLMAO:
2x30rnd Tapco Gen II
2x30rnd unmarked/unknown steel
1x40rnd unmarked/unknown steel

They all work fine.
 

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I have a couple no-name brands bought years ago from gun shows when Ruger would not sell HC magazines. Their functioning was spotty. Then Ruger (after Bill) started selling the metal 20's for my Mini 30 and I bought 6.

Like another here, I took a Dremel tool and did some shade tree machining, matching the feed lips up as well as I could. Now my no names work almost as well as the Rugers.

However, I am OCD and like RUGER printed on my mags. I use the 5's most of the time anyway to conserve my boolits.
 

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I had trouble with the pro mags as well. I never thought about using the Dremel to try and mod them. I will have to give it a try... Just seems odd that if they can be easily modified to work reliably then why doesn't pro mag do that during the manufacturing? Maybe a patent copy or something?
 

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I had trouble with the pro mags as well. I never thought about using the Dremel to try and mod them. I will have to give it a try... Just seems odd that if they can be easily modified to work reliably then why doesn't pro mag do that during the manufacturing? Maybe a patent copy or something?
I put a Ruger beside my no name and carefully worked. Measured when I could and eye balled when I needed to.

Then at the end, I paid close attention to the angle that the top round had coming off the magazine.
 

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I had trouble with the pro mags as well. I never thought about using the Dremel to try and mod them. I will have to give it a try... Just seems odd that if they can be easily modified to work reliably then why doesn't pro mag do that during the manufacturing? Maybe a patent copy or something?
They are cheap for a reason. Time = Money
 

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I have a couple no-name brands bought years ago from gun shows when Ruger would not sell HC magazines. Their functioning was spotty. Then Ruger (after Bill) started selling the metal 20's for my Mini 30 and I bought 6.

Like another here, I took a Dremel tool and did some shade tree machining, matching the feed lips up as well as I could. Now my no names work almost as well as the Rugers.

However, I am OCD and like RUGER printed on my mags. I use the 5's most of the time anyway to conserve my boolits.
Same. I use the 5 rd mag, mainly because while carrying it slung over my back for distance, there are fewer sharp corners.
 

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Ruger .44 Carbine, Security-Six, Service-Six, Mini-14, .30 Carbine Blackhawk
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I understand being a purist has its rewards, but for those of us that already have these after-market mags, I hate seeing them go to waste.
I feel the same way, but it you can't cheaply modify them to make them work reliably,
at some point, I'm not sure it's worth the effort.
 

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Ruger .44 Carbine, Security-Six, Service-Six, Mini-14, .30 Carbine Blackhawk
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The only aftermarket mags that worked well fro me in a Mini-14 are Thermold and Tapco Gen II. With that said, during Commiefornia Freedom Week, I stocked up on Ruger factory 20s and 30s to go with the ones I had from my LEO days. Now that's all I use in the Mini-14 or Mini-30
Yes, I've read quite a bit about the Tapco gen II working well. The Thermold mags can sometimes become misshapened over time. That said, I only purchase Ruger brand magazines for my Mini 14. Shop around and buy once, cry once. I have 12 magazines. I don't understand the big deal about Ruger brand magazine prices, unless one is dropping their magazines on the "battlefield" and leaving them there...
 
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