MDT Metal 300WM magazines are manufactured from high strength steel and finished with Cerakote Elite for the ultimate in durability and corrosion resistance.

This magazine has a 5 round capacity based on magnum rounds.

IMPORTANT

  • The standard length long action magazine in an MDT Chassis is 3.715" unless otherwise noted in the description stating CIP or 3.85 for the longer magazine well
  • If you purchased a rifle direct from an OEM or retailer, please check the specifications
  • Remington Tactical Chassis Rifle and 338 Lapua XCR rifles use a 3.775" magazine not available from MDT
  • Tikka T3/T3x and Savage Axis long action calibers in our chassis you must use the 3.560" option
  • Will not work with 300 Remington Ultra Mag, 300 Weatherby, and similar cartridges

SPECIFICATIONS

  • 3.560" magazine: 3.480" COA
  • 3.715" magazine: 3.600" COA
  • 3.850" magazine: 3.740" COAL

COMPATIBILITY

  • 300 WM
  • 7 PRC *make sure to open the feed lips slightly and choose the right length that matches your chassis
  • 5 stars: 134 (77%)
  • 4 stars: 15 (9%)
  • 3 stars: 11 (6%)
  • 2 stars: 3 (2%)
  • 1 star: 10 (6%)
G
Gene C.
3.850 CIP

The 300WM MDT5 Round Metal Magazine works exceptionally well with my 6.5-284 Savage 110 Predator rifle ever since I installed the new MDT Field Stock. In fact in functions much easier and smoother than the factory magazine and is 10x more robust.

M
MARK V.
Amazing magazine.

Awesome oversized magazine for the 300 WM I have it in. Allows for larger than normal reloading.
Cycles perfectly. No issues to date.

V
VINCENT C.
I loved the mags thanks

I loved the mags thanks once again!! Awesome quality!

M
Mitch S.
Some Issues

Spring is very stiff and the cartridge guide "fingers" are pretty sharp. So it is a bit challenging to load to capacity and unadvisable to do so. Unmodified this is more like a 3-capacity mag at max; if I load any more into it it gouges material off the case as the cartridge comes out, stiff spring and sharp edges combine to do a number on the brass (tough to photograph, uploading the best pic I got. Not the worst I saw before I started limiting to 3). I need to try filing some sled-runners into the leading edge, see if that fixes it.

Thank you for the review and feedback you are experiencing. If we can assist with any questions please don't hesitate to reach out to us directly.

R
Rich P.
The Hunter 26 in an Incredible Chassis

The custom virtual meeting was helpful to confirm what I was ordering was what I needed and wanted. Also the product knowledge of the staff was incredible. These guys don't just sell their products they use them, test them and help in the design process. The installation of my action into the chassis was simple and quick. Then once I got it out in the woods and was able to confirm my point of impact was still on and less than .5 MOA.
I'd like to thank MDT again for their sponsorship of The Veteran Hunters and we look forward to getting some of our veteran hunters out on this incredible chassis weapons system.

G
Greg K.
Reliable and consistent

I'm using the 3.850" length with my 6.5-284 and the mag catch gives the exact same engagement with all 3 magazines. I like having the identification on the back and bottom of the magazines as I am running other larger calibers through my Defiance switch barrel action. Using all 3.850" mags with different feed lips makes caliber changes easier.

A
Anonymous
3.715

With so many different confuratrations magazines its best to just call and consult the manufacturer and get the right pieces,Wasted a lot of time and money chasing down the correct size magazine to fit the MDT field stock 6.5 PRC. One call is all it took. Thx MDT.

S
Scott S.
3.715

I exchanged it for the 3.850” for my Christiansen arms model 23 7mm prc, it is absolutely the best! The quality of materials and functionality are flawless. Not enough can be said about MDT customer service, I have never been so impressed, I’m not just blowing smoke, I honestly cannot give the folks their enough credit for how quickly and professionally they treated me.

J
Jim F.
3.560

The magazine did not fit my rifle. My misunderstanding that it required the purchase of your stock. I returned the magazine.

C
CODY H.
3.715

Good magazine kinda spendy, needs broken in or modified to feed better.

T
Tod H.
3.850 CIP

Pretty good. The follower seems to be a one size fits all built for the shorter versions of the 300wm because it is a little loose and short but otherwise it's not bad. Has some binding up on the rounds about 10% off the time but I don't fault the mag I'm faulting the shoulder on the 7mm prc for that. Only have 55 rounds through my gun using this mag so not to much use on it yet.

A
Anonymous
3.715

Pricey but well made.

P
PHILLIP D.
3.560

Great mag

J
James N.
3.850 CIP

Well built, worked perfectly, set up for release was easy will buy more as needed.

J
Jeffrey H.
3.715

Great magazine. 7PRC

V
Vernon L.
3.715

As advertised

S
SW
3.560

Mag fits great and cycles ammo perfect.

S
Scott W.
3.560

Had a little hiccup with being out of stock but the folks at MDT got it shipped as quickly as they could. It showed up and fit perfectly. Thank you for being great and having a great product.

A
Anonymous
3.850 CIP

Fits good

A
Anonymous
3.850 CIP

Quality is great looks great waiting for the barrel to put it all together

W
Willard C.
3.560

Great product fits and functions flawlessly

B
Brian H.
3.850 CIP

Well made and fit my CIP bottom perfect! Good purchase!

P
Paul

Hi Guys. Have quick question. I have tikka t3x in 6.5x55 SE. Does MDT mag with sku 103208-BLK will fit Oryx long action chassis for tikka t3x.

T
Tyler R.
3.715

Fits just right with field stock. Feeds all types of grain differences with no issues.

W
Wade
3.715

Mag was purchased to be used in NRL Hunter event. It was used in inclement weather to shoot 8 stages without issue.

A
Anonymous
3.715

Fit perfectly on my Proof research 7 mm PRC, 3.715 5 RD. But the 3 rd 3.85 that have 7mm prc on the mag did not fit.

A
Anonymous
3.715

Nice steel

D
Derek
7prc mag doesn't feed every time

It feeds very rough but not every time. It feeds better if I run the bolt hard and fast. Slower results it bolt overs. It will not feed the last round at all. This is after instructions from customer service on how to tune the magazine. For the price I believe it should work without having to tune it.

Thanks for taking the time to post your review. Tuning the feed lips helps account for the different cartridge body diameters and shoulder placement from cartridge to cartridge. The 300WM case body is quite a bit different from the 7PRC, and the magazine can accommodate it with a simple tune. It's an easy process, and we've even made a great video explaining how to do it.

How to Tune Your Magazine