Official MDT 6BR Magazine Thread

[MDT_Josh]

Hey Everyone, @MDT_Josh here with @MDT_OFFICIAL to talk about our newly released MDT Metal 6BR 12 round magazines! We've mentioned these magazines in a handful of other threads and answered some questions, but I'd like to group all of them into one here. We're really excited to see the support for them already and are happy to be able to support those of you running the BR variants in repeater actions.

For previous discussions, comments and questions see here and here as well as some others.

I have tried to answer a lot of your questions in the descriptions of the magazines as I will post below, but we will also be doing some videos on the mags soon. Let us know what you guys and gals think, what you want to know and how we can help you out!

- Josh

Magazine Description from Website:

"MDT AICS-pattern metal magazines are manufactured from high strength steel, nitride-finished and coated with Cerakote Elite for ultimate durability and performance.

The 6mm BR magazine is offered for the 6mm BR and family of cartridges, and are available in 12 round capacity.

These magazines are designed with a unique Double Stack to Single Feed (DSSF) transition design for reduced overall height compared to the industry standard.

12-Round Magazines for 6mm:

• 3.055” Outside Length
• 2.570” max cartridge overall length (COAL) with binder plate and spacer
• 4.61” Rear Height

All of our magazines include 2 internal ribs that help reduce friction between the cartridge and magazine body and provide a smooth transition from a double stack to single feed at the top of the magazine.

6MM CALIBER MAG
From testing, we have established that these magazines will work with the following calibers:

• 6mm BR Norma
• 6mm BRA
• 6mm BRX
• 6 mm Dasher
• 22 BR

Additionally, through testing, we have found that these magazines ARE NOT COMPATIBLE WITH the following actions:

• Curtis Custom's Axiom and Vector
• GAP Tempest
• Ultimatum Deadline
• and most other commonly available, aftermarket 3-lug actions"

 

[jsimonh]

Got mine in the mail today. Ran 20rds through it on my lunch break with no problems. Seems like a good fit for my TL3 6 Dasher.

 

[just browsing]

Ordered 2 to run with my 6 Comet. Will report back once I have a chance to put them through their paces on the Impact. Hopefully I’ll have some AICS to sell in a few weeks.

 

[Bertoli888]

@MDT_Josh , Hello: I have a John Hancock PVA rifle in 6BR on order. Have you had a chance to test it on that one?

 

[MDT_Josh]

@MDT_Josh , Hello: I have a John Hancock PVA rifle in 6BR on order. Have you had a chance to test it on that one?

Hey @Bertoli888 , we haven't tested it in a John Hancock fully built rifle, however we have tested it in the ARC Nucleus actions, which is what the PVA John Hancock uses The ARC Nucleus is a standard diameter 3-lug bolt, meaning that the magazine is able to sit up high enough in the action to function reliably, unlike some of the other aftermarket, 3-lug actions we have tested with.

 

[Bertoli888]

Great news!!!

 

[Rangerbob33]

Got mine today in the mail, going to do some adjusting so I can hopefully run 224 Valkyrie.

 

[Tunnuh]

Any tests with these to adjust and run .223 yet? I may have to just order and try it. But they look promising

 

[MDT_Josh]

Any tests with these to adjust and run .223 yet? I may have to just order and try it. But they look promising

These magazines are still designed to be used with cases that have similar body diameters to .308/6.5CM and therefore, are a little too wide to be used with 223/5.56. The internals and feedlips are just too big for the little cases

 

[Steel head]

Hey @Bertoli888 , we haven't tested it in a John Hancock fully built rifle, however we have tested it in the ARC Nucleus actions, which is what the PVA John Hancock uses The ARC Nucleus is a standard diameter 3-lug bolt, meaning that the magazine is able to sit up high enough in the action to function reliably, unlike some of the other aftermarket, 3-lug actions we have tested with.

That’s good news for me.

 

[Bugzlife19]

Can’t wait ordered 2.

 

[dumbbell]

Got mine in today. Ran 80 rounds of dasha Like a champ. Great product mdt!

 

[mws2000]

Got mine in today. Ran 80 rounds of dasha Like a champ. Great product mdt!

Following

 

[IowaGeologist]

Will have to set up shop in the PX waiting for some regular 10 rd MDTs to show up. Very cool for the BR guys.

 

[earthquake]

Just ordered one. Looking forward to running it in my TL3 Dasher at the Big Dog Steel match in a couple weeks.

 

[canezach]

I ordered mine last week. Just hoping it shows up in time for Border Wars next weekend.

 

[MDT_OFFICIAL]

We will be back in stock very soon on these!

 

[LtDan47]

We in Commiefornia need a 10 round version

 

[earthquake]

Wait, so they're out of stock when I ordered yesterday? Site didn't say that.

 

[Mallison]

I’m going to order 1 today, that way when I go to big dog I’ll have 3 mag options, hoping I only need 1 option lol

 

[Winny94]

Hey @Bertoli888 , we haven't tested it in a John Hancock fully built rifle, however we have tested it in the ARC Nucleus actions, which is what the PVA John Hancock uses The ARC Nucleus is a standard diameter 3-lug bolt, meaning that the magazine is able to sit up high enough in the action to function reliably, unlike some of the other aftermarket, 3-lug actions we have tested with.

Well damn, i asked you social media guy this question and was told the Nuke wasnt tested, but odds are it wouldnt work, so I didnt order.

 

[mws2000]

We in Commiefornia need a 10 round version

This!

 

[Mallison]

We will be back in stock very soon on these!

How soon, want one for big dog first weekend in MaY

 

[earthquake]

How soon, want one for big dog first weekend in MaY

That's what match I'm hoping mine shows up in time for, too!

 

[craigos]

Wait, so they're out of stock when I ordered yesterday? Site didn't say that.

Ordered mine a few weeks ago and still no shipping .....

 

[mikehotel]

Another behind enemy lines that needs a 10 rounder.

thanks

 

[regnar375]

Not compatible with the axiom.

Any idea why? Something I could fit? I have a 6bra and was looking forward to trying one.

 

[Jackomason]

Not compatible with the axiom.

Any idea why? Something I could fit? I have a 6bra and was looking forward to trying one.

Between the orientation of the lugs (how they interface with the single stack vs the double stack) and how far in the magazine sits into the action, there just isn't enough purchase. That's my understanding anyway...

 

[Winny94]

Between the orientation of the lugs (how they interface with the single stack vs the double stack) and how far in the magazine sits into the action, there just isn't enough purchase. That's my understanding anyway...

That is the exlanation, but what doesn't make sense is there are plenty examples of guys running aics pattern mags with a dasher kit with no issue on those supposed incompatible actions

 

[andrewsben]

Just ordered 2. Don't have a small shank to use with my origin. But might move a savage dual port PTA with palma stock and do a new build so I can run BRs out of a mag.

 

[JS624]

I've been running these mags with my defiance devaint and a 6 dasher for a couple months now and they run great!

 

[Hollywood 6mm]

Hey @MDT_Josh and @MDT_OFFICIAL - Slightly off topic, but have you guys ever considered making an AW-pattern magazine (double stack/double feed) that either holds 12+ from the box, or is set up to allow for magazine extensions? The welded bottom of the AIAW mags makes it quite difficult (but not impossible) to extend them, and an aftermarket option that allowed for greater capacity would be freakin' AWESOME.

 

[Hollywood 6mm]

Any tests with these to adjust and run .223 yet? I may have to just order and try it. But they look promising

MDT already makes dedicated 223 mags.

 

[Tunnuh]

MDT already makes dedicated 223 mags.

I know, I wanted the longer OAL with some modification, but I think their mags should work with what I want to do.

 

[Hollywood 6mm]

I know, I wanted the longer OAL with some modification, but I think their mags should work with what I want to do.

Fair enough, but I'm loading some pretty LONG handloads in 223 (well north of 2.4") and they fit in the polymer MDT 223 mags with room to spare. If you're trying to load something in the 88-90+gr range, though, I can see why you might need something longer.

 

[Tunnuh]

Fair enough, but I'm loading some pretty LONG handloads in 223 (well north of 2.4") and they fit in the polymer MDT 223 mags with room to spare. If you're trying to load something in the 88-90+gr range, though, I can see why you might need something longer.

That's what I wanted to do, but I may be able to file the 223 polymer and get them to fit, not sure. If not, then 80 will be it.

 

[MDT_OFFICIAL]

Hey @MDT_Josh and @MDT_OFFICIAL - Slightly off topic, but have you guys ever considered making an AW-pattern magazine (double stack/double feed) that either holds 12+ from the box, or is set up to allow for magazine extensions? The welded bottom of the AIAW mags makes it quite difficult (but not impossible) to extend them, and an aftermarket option that allowed for greater capacity would be freakin' AWESOME.

Yes, we have considered it and that may happen sometime in the future.

 

[MDT_OFFICIAL]

We in Commiefornia need a 10 round version

We will take this into considerdation, thank you for your feedback!

 

[MDT_OFFICIAL]

How soon, want one for big dog first weekend in MaY

We are look at the first few weeks of May!

 

[MDT_OFFICIAL]

Hey @MDT_Josh and @MDT_OFFICIAL - Slightly off topic, but have you guys ever considered making an AW-pattern magazine (double stack/double feed) that either holds 12+ from the box, or is set up to allow for magazine extensions? The welded bottom of the AIAW mags makes it quite difficult (but not impossible) to extend them, and an aftermarket option that allowed for greater capacity would be freakin' AWESOME.

It's something we've considered for sure! Make sure you are signed up for our newsletter to be kept up to date with all future product launches!

 

[Hollywood 6mm]

It's something we've considered for sure! Make sure you are signed up for our newsletter to be kept up to date with all future product launches!

Glad to hear it. For those of us running 3-lug actions with fat bolts, having an option for 12+ rounds in a magazine would be awesome for PRS matches.

 

[Eric_F]

These look great. Has there been any testing with the Tikka T3 action? It's a 3-lug but not aftermarket...

 

[regnar375]

@MDT_Josh

Little off topic but based on the amount of involvement with your customers (this thread and others) I ordered a ACC chassis.

 

[MDT_Josh]

These look great. Has there been any testing with the Tikka T3 action? It's a 3-lug but not aftermarket...

There has been no testing on our part with a Tikka T3x just yet with this magazine, but I see no reason why it wouldn't work. The T3 and T3x are a standard 2-lug, push feed action

 

[MDT_Josh]

@MDT_Josh

Little off topic but based on the amount of involvement with your customers (this thread and others) I ordered a ACC chassis.

That's awesome and I am sure that @MDT_OFFICIAL will be happy to hear If you ever have any questions, comments or concerns with the chassis or other products, we're here pretty much 24/7 for support.

 

[260284]

These look great. Has there been any testing with the Tikka T3 action? It's a 3-lug but not aftermarket...

Josh beat me to it, all Tikka T3 and T3x are 2 lug. I am using the 12 round MDT mags with the Primal Rights kits in a 22BR Tikka and they work great. They hold 13 no problem.

 

[Eric_F]

There has been no testing on our part with a Tikka T3x just yet with this magazine, but I see no reason why it wouldn't work. The T3 and T3x are a standard 2-lug, push feed action

Thanks! Not sure why I just assumed all actions with <90 deg bolt throws were 3-lug.

 

[Smith1534]

Hey Everyone, @MDT_Josh here with @MDT_OFFICIAL to talk about our newly released MDT Metal 6BR 12 round magazines! We've mentioned these magazines in a handful of other threads and answered some questions, but I'd like to group all of them into one here. We're really excited to see the support for them already and are happy to be able to support those of you running the BR variants in repeater actions.

For previous discussions, comments and questions see here and here as well as some others.

I have tried to answer a lot of your questions in the descriptions of the magazines as I will post below, but we will also be doing some videos on the mags soon. Let us know what you guys and gals think, what you want to know and how we can help you out!

- Josh

Magazine Description from Website:

"MDT AICS-pattern metal magazines are manufactured from high strength steel, nitride-finished and coated with Cerakote Elite for ultimate durability and performance.

The 6mm BR magazine is offered for the 6mm BR and family of cartridges, and are available in 12 round capacity.

These magazines are designed with a unique Double Stack to Single Feed (DSSF) transition design for reduced overall height compared to the industry standard.

12-Round Magazines for 6mm:

• 3.055” Outside Length
• 2.570” max cartridge overall length (COAL) with binder plate and spacer
• 4.61” Rear Height

All of our magazines include 2 internal ribs that help reduce friction between the cartridge and magazine body and provide a smooth transition from a double stack to single feed at the top of the magazine.

6MM CALIBER MAG
From testing, we have established that these magazines will work with the following calibers:

• 6mm BR Norma
• 6mm BRA
• 6mm BRX
• 6 mm Dasher
• 22 BR

Additionally, through testing, we have found that these magazines ARE NOT COMPATIBLE WITH the following actions:

• Curtis Custom's Axiom and Vector
• GAP Tempest
• Ultimatum Deadline
• and most other commonly available, aftermarket 3-lug actions"

Anyone using MDT mags, and a Defiance action for 6 dasher successfully ?

 

[C_Mack]

Anyone using MDT mags, and a Defiance action for 6 dasher successfully ?

I’ve run multiple MDT mags in a Defiance Deviant for 6BRX with zero problems

 

[Sharpline]

I had trouble in my last match with rounds nose diving in two of my magazines. The last 3-4 would be nose down in the MDT mag. Has anyone experienced that? Any tips? I am thinking feed lip adjustment perhaps...