Ruger Mini-14 and Mini-30 Ruger Mini-14 and Mini-30 family of rifles

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Old 04-09-2012, 16:36   #1
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Question PMI 40rd vs. Triple K 40rd

I recently bought a triple k 40rd mag that seems to cycle just fine fast or slow and locks in solid but haven't range tested it yet. Ive talked to a lot of people who've had very good luck with this particular capacity triple k mag and only a few who haven't. Now I'm considering buying some PMI pre-ban 40's off some forum members for around the same price, what i really need to know is this: which would you buy? (please don't say factory mags... i know they're better quality) Between the two, which is more likely to function properly and continue doing so?
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Old 04-09-2012, 21:57   #2
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Real PMI's (not promag's) are as reliable as factory Rugers. I've only got a few Ruger 30's and a bunch of PMI 30's and 40's. The 40's can get a bit heavy. I've got a few promag 20's which are supposed to be as reliable as the Ruger 20's... They're not!

One thing to consider is that you can get replacement wolf springs for the 20's and 30's, but not for the 40's (at least you could not a few years ago). Of course, if you buy enough mags, you won't have to worry about replacement followers and springs
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Old 04-10-2012, 05:30   #3
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Originally Posted by y2kwindsor View Post
Real PMI's (not promag's) are as reliable as factory Rugers. I've only got a few Ruger 30's and a bunch of PMI 30's and 40's. The 40's can get a bit heavy. I've got a few promag 20's which are supposed to be as reliable as the Ruger 20's... They're not!

One thing to consider is that you can get replacement wolf springs for the 20's and 30's, but not for the 40's (at least you could not a few years ago). Of course, if you buy enough mags, you won't have to worry about replacement followers and springs
I've got a bunch of Promag 20's (steel) and they are just as reliable as my Factory 20's.

My factory 30's work 100%, as well as my two Eagle (Plastic cheapie) 30's. I've been surprised my Eagle 30's work 100%, but I'm waiting for the day when they wear out (Been told they will sooner or later).

I've never tried any 40 round mags as I never saw the point in them (Even with a AC-556)
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Old 04-10-2012, 08:32   #4
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That's why I'm pretty much hunting down PMI's, there's so many mixed reviews on the others and I'm not a fan of poly. so I don't want to try the Tapco Gen II's. The Triple K 40's in particular however, Ive only heard a couple complaints and i noticed most, if not all were using a 580-series. While most of the positives came from 181-190 series rifles, which I suppose could be coincidence...but either way they are selling like hotcakes (midway ran out in 5 days). I just bought my first Mini, a police trade-in '93 186-series w/ a blued factory folding stock which it unfortunately did not leave the factory with .

So far I've only added a Mo-Rod (great experience dealing with Kelly) and have a cheap flash hider on the way, the very furthest i plan on going is a side mount optic rail and bipod; either a Harris adapter or a barrel clamp style mounted to the Mo-Rod. I'm also not going exclusively w/ the 40's or anything, i only need 3 more for my chicom-style chest rig and then ill be needing 4-6 30's plus the occasional factory 20 rounder i can get on a good deal, then...on to the extras and parts . This newbie appreciates all the help and advice I've been getting from you guys here at PerfectUnion, I've been lurking for over a month before i finally joined ya.

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Old 04-10-2012, 10:08   #5
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Originally Posted by KillerSalmon View Post
That's why I'm pretty much hunting down PMI's, there's so many mixed reviews on the others and I'm not a fan of poly. so I don't want to try the Tapco Gen II's. The Triple K 40's in particular however, Ive only heard a couple complaints and i noticed most, if not all were using a 580-series. While most of the positives came from 181-190 series rifles, which I suppose could be coincidence...but either way they are selling like hotcakes (midway ran out in 5 days).
It's about time! I've been trying to tell as many folks as possible about Triple K mags for a while. It bums me out to hear so many people complain about bad mags when I was able to walk straight into Cabela's and they were basically the only brand of Mini-14 magazine offered.

I have (4)40's, (3)20's, and (1)10 for my '580'. Never a failure with any of them. I once bought a no-name steelie and learned my lesson about bad Mini mags. I have one Tapco Gen2 just to try out the polys, and I like it, but it still doesn't run as perfectly as my Triple Ks. Triple K's could be a little cheaper, but they're a definite contender against Factory Ruger mags.
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PMI 40rd vs. Triple K 40rd-triplekmags.jpg  
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Old 04-10-2012, 10:33   #6
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I got frustrated trying out the other cheap mags all the time. When the factory mags went on sale I broke down and bought those. Have tried some Triple K's as a friend had some already loaded, but have not used or tested them exhaustively, like others I had. Now I just use the factory ones. I would like to buy one or two of the Tapco, PMI, Triple K, & Promag and do some testing on each, but that is $ for magazines that I have unknown history with. If I get them from Brownells and decide I don't like them, I can return them NO questions asked. I have used a few of these off and on. None of them have preformed like the factory ones, but I have used them (the Factory mags) most and over the long term.

I would like to find some good 40 rounders.
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Old 04-10-2012, 11:55   #7
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I've had good luck with ProMags. 2 30-round polymer mags (purchased right after I got my Mini) and 1 10 round steel mag (bought about 6 months ago) perform flawlessly in my 580. I'm a huge fan of poly mags, I just wish someone would come out with a 10-rounder, as I don't really have a need for 20, 30, or 40 rounds...
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Old 04-10-2012, 17:32   #8
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well it looks like on or about the 15th I'll be placing an order for 2 PMI 40's, hope all goes well. i cant really endorse the Triple K 40rd until i can range test it but after the talking, comparing feed lips and the hand cycling I've done... I'm pretty optimistic about how it will function. After I have enough of those, I'll move on to the 30's and probably stick to factory for as many as I can and PMI's for when when i need to save.
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Old 04-13-2012, 23:35   #9
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BTT, would like to hear some more experiences with PMI 40'S and/or triple k 40's
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Old 04-17-2012, 00:02   #10
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I recently traded off my Mini-14 but kept all my "real" PMI mags if that says anything.
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Old 04-18-2012, 05:03   #11
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well my 2 PMI 40rd mags should be here by Thursday and I plan on making a trip to the range in a week or 2. that way I can run the PMI's against the Triple K and see if either work well enough to buy more of, I plan on posting my results. I also have a PMI 30, unknown 30 and a factory 20 to test.

Update 4/19/12:
I received the 2 PMI 40rd mags i ordered from a forum member, (a very pleasant experience dealing with drthelongshot btw.) Both cycle fine, just waiting on a range test.

Last edited by KillerSalmon; 05-02-2012 at 23:46.
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Old 04-29-2012, 19:23   #12
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Range Test Day 4/29/12-
took the mini and an assortment of others to the range to welcome my buddy back from Afghanistan. Tested out my handloads, mo-rod, and new magazines but didnt get to do much longer range work and was stuck at 50/75yds (packed range.) The Triple K 40rd functioned PERFECTLY through 120 rounds, the PMI 40rds each had one stoppage (one mangled a case) in 80 rounds each and both 30's and factory 20 functioning perfectly. I'm very glad i have another Triple K 40rd coming to me in the mail as we speak!

The Mo-Rod kept my barrel true even after it slipped off the gas block (yes it was tightened w/ loctite) and she printed fully combat-effective groups right where you put the sight (first 40rds were mostly in the 10 ring off a bench w/ a rest.) When i actually tried it was 1.5moa 5-shots at 75yds with factory sights shooting 62gr Armscor USA. Im really pleased with the rifle, with the mags and with my reloading progress (my 1917 30-06 Enfield was a tack driver with my 168gr Sierra HPBT's and Varget,) the Rangemaster even took it to the 300yd range, their longest, and shot 5....loved it and wanted my recipe lol.

Last edited by KillerSalmon; 04-29-2012 at 20:12.
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Old 04-29-2012, 19:42   #13
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"The Mo-Rod kept my barrel true even after it slipped off the gas block"

Definit'ly gonna git onaa them.
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Old 04-29-2012, 22:24   #14
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Originally Posted by KillerSalmon View Post
....The Triple K 40rd functioned PERFECTLY through 120 rounds, the PMI 40rds each had one stoppage (one mangled a case) in 80 rounds each and both 30's and factory 20 functioning perfectly. I'm very glad i have another Triple K 40rd coming to me in the mail as we speak!
Awesome...good to hear it. I was hoping I wasn't a rare case, and I'd hate to give out mis-information. High five!!

BTW, not even 6 hours ago I bought my first 1944 Lee Enfield .303 "Long Branch".
Ammo choices were literally nil at my Cabela's, and the only bullets to be found were 123gr .310"s....*gulp*

Looks like I'm gonna learn how to reload another caliber
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Old 04-29-2012, 22:41   #15
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I was hoping you weren't too . it also locks in a bit tighter front and back but is a bit looser side to side. all in all, the pmi 40's are fully useable but the triple K seems more solid, and so far feeds a bit better. I will be buying PMI 30's when I can find and afford them or I have to shell out $45 plus tax a piece for the only 2 factory 30's in the local store.

I'm really enjoying reloading especially since I got the lee classic turret press. The rangemaster was almost speechless when he heard I loaded those 168gr match on an auto-indexing turret, if lee would take my advice and make it possible for the pro auto disk to throw larger charges I'd be in heaven.

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Old 05-03-2012, 05:06   #16
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Update: Received my last Triple K 40 in the mail from MidwayUSA on 5/2. This one is just as tight front to back as the first (tested) one and actually is also nice and tight side to side (as tight as the PMI's) and once again, this one hand cycled perfectly. One potential issue I noticed is that the bolt hold-open is closer on this brand than others to the feed lips and on my new one, even more so. This seems to mean that if any uneven pressure is applied, it will catch and hang-up, so some sanding of the green polymer follower might be in order. This doesn't change my opinion that this is a solid, well made magazine, and I would definitely recommend it regardless of what people may have heard about their 30 rounders.

Im sure it seems like Im going way too in-depth on such a specific subject, but the way this post has gone is exactly what i was wanting to see when i was researching what to buy. Hopefully this helps someone new.
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Old 05-03-2012, 07:22   #17
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Originally Posted by KillerSalmon View Post
Im sure it seems like Im going way too in-depth on such a specific subject, but the way this post has gone is exactly what i was wanting to see when i was researching what to buy. Hopefully this helps someone new.
IMO, every added detail only helps us. Pictures would even be better. It's the best we can do without actually holding a product in our hands, and everyone's really careful with their dollar these days.

Good write-up.
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Old 05-03-2012, 18:21   #18
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triple k seems to have come up in quality last few years, the first ones were problematic.
beware national and western brands.
this is M30 mags can't say of the 14's
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Old 05-06-2012, 02:15   #19
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After really staring at my remaining "unknown" (perfect functioning) 30rd mag for a post I did on another thread, I'm really thinking it's an old Triple K unless maybe Triple K bought out an older manufacturer's equipment/process? It has the same weld pattern that the other brands Ive seen don't (large and small weld spots,) exact same floor plate and tabs, similar groove/ridge design, similar heavy gauge body and same lack of side holes. However, it has a black follower (my other TK's have green,) and it has a stamped magazine catch (my TK 40's are welded) so I can't be sure. If anyone has any knowledge or experience on the subject, I'd really appreciate it.

update:after looking at the magazine pictures here, i think it could really be an original USA Mag brand (not the new "USA")

Last edited by KillerSalmon; 05-06-2012 at 03:12.
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Old 09-10-2012, 15:42   #20
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also, thanks to this site I have discovered that my "PMI" 40's are most likely Bingham Ltd. 40's (due to the "waffle marks" under the top side-holes.) But they appear otherwise identical to PMI (I've read much speculation that they were bought out by PMI along with Fed. Ord.) and have a sterling reputation -like PMI- for properly functioning so I'm just as happy as when they were bought.
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