Would either of you be willing to post pics of the mag loaded without the bottom plate like @EmanP’s photos, and/or a quick video of you loading 12 rds into the mag?
Curious to see if your mags behave the same as ours
Official MDT 6BR Magazine Thread
- Thread starter MDT_Josh
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Curious to see if your mags behave the same as ours
I wish I had seen this thread before I bought the 5 10rnd mags I have. All 5 of them are only good for 5-7 rounds at most. The mags start slightly bulging after 5 rounds, and after 7 rounds I have to force them in to get all 10 and in doing so, it really bulges and causes the ribs to severely indent the case body.
Hey EmanP,
Sorry to hear that you're having issues, but it seems like there has been a little bit of a mix-up with your magazines/followers? Those appear to be our 10 round followers in your 12 round magazine, which would definitely cause capacity issues! You have a few options on how to solve the capacity and any potential feeding issues, but I would suggest that you contact our customer support team (MDT Customer Support Portal) and they will 100% make it right for you!
If anyone else (looking at you @W6SPK ) has any issues, be sure to reach out to us and we'll work through the problems with you
- Josh
On the left is the follower from a 10rnd MDT 308 mag, on the right is the follower from a 10rnd MDT 6BR mag. The 6BR follower is about twice the height of the standard follower. Seems this is the root of the issue right here.
Removing the base plate and loading 10 rounds into the mag and placing the follower on top shows very clearly that the follower is too tall. More than half of the follower stick out beyond the bottom of the mag! This means the follower is bottoming out long before you get 10 rounds in there, and the only way to make room for the remainder is for the cases to pack more tightly together and bulge the mag walls.
Like I said, with mine I am able to load 5-7 rounds before it starts getting very difficult. In order to get all 10 rounds in there it's a battle between the brass and the steel mag walls. The mag wall will give a little, but in the end, it wins the fight and your brass ends up getting hammered.
Removing the base plate and loading 10 rounds into the mag and placing the follower on top shows very clearly that the follower is too tall. More than half of the follower stick out beyond the bottom of the mag! This means the follower is bottoming out long before you get 10 rounds in there, and the only way to make room for the remainder is for the cases to pack more tightly together and bulge the mag walls.
Like I said, with mine I am able to load 5-7 rounds before it starts getting very difficult. In order to get all 10 rounds in there it's a battle between the brass and the steel mag walls. The mag wall will give a little, but in the end, it wins the fight and your brass ends up getting hammered.
After a successful run with the br mags, I switched to 25gt and picked up some 308 10rds and ran into issues, seems the back end of the follower was hanging up on the back part of mag. Not wanting to go down it caused nosedives and feeding issues. Sanding of the follower in the trouble spots and tuning feedlips did the trick
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I did contact MDT after my post and the response was that I could trim down the legs of the follower if needed. To their credit, they did offer to send me some extra followers to try modification. I would prefer to buy gear that I could go out and shoot with, rather than have to spend my time in the garage fiddling with it to make it work, and on top of that I was pretty sure that it wasn't going to solve the issue, but I took them up on that offer.
In the meantime, I did try to modify on of the followers to make it work and, though it helped, it is still not working properly.
After the modification there are still two issues:
(1) At full compression, the springs do not allow the modified follower to bottom out on the baseplate, which means all the rounds have to be compressed in the magazine to get #10 loaded and when you do that the cases push against and bulge the magazine wall. This is what causes the case markings/indentations just under the case shoulder and, if the magazine is bulging out too much, could prevent you from loading the mag into the rifle. The attached photos show that the fully compressed spring extends past the bottom of the modified follower, which is cut just short enough to bottom out on the baseplate.
(2) After modifying the follower, it has a tendency to tilt back and get jammed up after loading about 5 rounds and will not accept any more rounds unless I stick a pick down the mag and push the follower nose down to get it leveled out. Not a process I really care for.
It is a mystery to me how anyone that owns these mags is able to load them to their advertised capacity, especially without any modification.
That being said, I am going to be getting rid of these in favor of something that works.
I guess that I was just lucky. I have no problem getting ten in my 6BR 10-round magazine. Two of these magazines actually.
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With AICS magazines, you will want to run them fast; otherwise, if you cycle slow, you are going to run into problems.
-Paige
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We do appreciate the feedback; I will pass this over to the team, as we are always looking to improve where we can. Just to confirm, this is on the 10 round 6BR magazines?
-Paige
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I know that we are looking to improve the 10 rounds. I'll make sure to pass this extra info onto them.
-Paige
Is there a timeline for the update as apparently it's been in development for quite some time?
Would love to have a short 10rd magazine that works as well as my 12 rd. I am just running the 12s all the time and the 10 is a paper weight.
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I don't have an exact eta, but it is in development, and we are in the last stages, so it should not be too much longer.
-Paige
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