.308 Accurate Mags for extended COAL (Cartridge Over All Length)

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GrizzlyLC

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I currently have 2 x 10rd standard DSSF mags that came with my RPR, I am going to try reloading for the first time for this rifle and along my research adventures I have found out that COAL can be a problem with these mags. I visited the accurate mag website and saw that they offer versions of the .308 DSSF mag that offer a longer COAL, which I'm very interested in

here are the part numbers;

5rd: 00100-0041

10rd: 00100-0040

Does anyone have any experience with these mags?? I know they are not as strong as the standard version due to missing the binding plate but it is a trade off I suppose

also where could I get these mags in Canukistan??

:cheers:
 
I have them for my 6.5 SAUM, they are very good, and they are as strong as you will ever need even without the blind plate, l have never had a problem, you can get them through cadex as it is the one they run in their systems.
 
IIRC my AM 10 rders can accommodate 2.995". I load Hornady 178 hpbt to .030" off the lands in my 700p and they fit and feed in my AM mags. I think my OAL was 2.9" +/- bullet length variance.
 
I load .308 to 2.950" and those mags work fine for me. I have 4x 5 rounders and 4x 10 rounders for two different rifles. Be ready to fine tune the mag lips. You will need a caliper to ensure the opening is the same on all your mags. If the mag lips are too close the rounds will sit low and the bolt will ride on top of them. If the feed lips are too open the rounds can spring up in the action. I also found that when loading long it helps to open the lips the first 1/4" at the front to prevent the long rounds from getting stuck on the breech face.
 
I used 2 a lot in the past... I was loading to 2.910" for my 308.

One thing you need to think about is the feeding ramp... Mag can accept longer rounds but you will not feed properly if the feed ramp is not meant to accept longer cartridges.
I had to modify my feed ramp...

Cheers.
 
I bought an RPR last year in 308 that came with accurate mags and they are junk.
The feed lip angle is wrong and the rounds get stuck in the taper.
It's my understanding that if you buy the Accurate Mags from Cadex, they reform the feed lips to correct this problem. (Not 100 percent certain on this but 80 percent sure, but you better check.)

In the hand its hard to tell Accurate Mags from AI but measure the gap between the feed lips and the problem is obvious... Too far apart.
I've developed a fondness for the MDT plastic mags though... in both 308 and 223 sizes... now my fav because the plastic feeds smoother than steel.

For rugged long term durability though the real deal steel AI are sure to last longer.

In case you are wondering...
I have several 308 mags from MDT, AI and Accurate. The AI and Accurate are steel and MDT are plastic.
I also have several 223 version of the AI pattern plastic mags for 223 from MDT and Ruger. I like the MDT best for feed reliability. The Ruger mags are not bad but MDT are a little better.
 
Last edited:
BadAsMo said:
I bought an RPR last year in 308 that came with accurate mags and they are junk.
The feed lip angle is wrong and the rounds get stuck in the taper.
It's my understanding that if you buy the Accurate Mags from Cadex, they reform the feed lips to correct this problem. (Not 100 percent certain on this but 80 percent sure, but you better check.)

In the hand its hard to tell Accurate Mags from AI but measure the gap between the feed lips and the problem is obvious... Too far apart.
I've developed a fondness for the MDT plastic mags though... in both 308 and 223 sizes... now my fav because the plastic feeds smoother than steel.

For rugged long term durability though the real deal steel AI are sure to last longer.

In case you are wondering...
I have several 308 mags from MDT, AI and Accurate. The AI and Accurate are steel and MDT are plastic.
I also have several 223 version of the AI pattern plastic mags for 223 from MDT and Ruger. I like the MDT best for feed reliability. The Ruger mags are not bad but MDT are a little better.
Click to expand...

Very interesting information on the Accurate Mags vs the AI mags. Thanks for the heads up BadAsMo.
 
OP, you can also drill out the two spot welds on the normal COAL length model mags and then just fill the holes with some JB Weld. I put a bit of metal ductwork tape on the inside of the mag and after a bit of sanding to even them out and a bit of black spray paint you really cannot tell the difference.
 
If you know how to tune feed lips you're golden, the AM's work as good as anything else once set up for your rifle. I found the MDT mags were sh!t. Fed like crap and had to push really hard to get 10 rds in them. I sold them and never looked back.
 
I ran Magpul AICS mags and switched to Accurate Mags for the longer COAL. Both of mine (purchased directly from Accurate Mag) have worked flawlessly (one of them with a Seekins 2 round extender for a total cap of 12) after just a lil smoothing out of the feed lips with some fine sandpaper. I had no need to otherwise modify the feed lips. My shooting partner runs them as well and they have been flawless through this whole match season.
 
Accurate mags have worked well in several different rifles for me, a custom with a Stiller action, and a Tikka in a MDT ESS chassis, and I have loaned them out to other guys and they worked in their rifles too with out need for modification in any of the rifles. I am not sure where the lack of strength issues come from, unless you driving over them with your truck, I don't see a problem with them at all. I got mine from Gary at Bighorn Sales--best parts supply guy in the industry, bar none.
 
So to sum up get Accurate Mags from Cadex for a longer COAL as they will function fine using an MDT chassis ?
 
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