These are designed to fit short action AI magwells and chassis.

Use a metal magazine for this caliber as the feed lips need adjustment. MDT AICS-pattern metal magazines are manufactured from high strength steel, nitride-finished and coated with Cerakote Elite for ultimate durability and performance.

Pacific tool and Gauge bottom metals- (Configured for AICS magazines) Will fit short action bergara or any bolt action rifle taking an aics style mag.

CDI Precision bottom metals- (Configured for AICS magazines).

GRS riflestocks- (Configured for AICS magazines).

This magazine has a 5 round capacity based on magnum rounds. Compatible with AICS pattern DBM chassis and bottom metals which accept 3.850 CIP length magazines. They are slightly fatter than AICS footprint at the rear edges, though, and may require minor fitting work for some chassis and stocks designed off AICS specs (Pork Sword Chassis fit them fine as of June 2020). Based on customer feedback, the following systems work well with our magazines, but fitting may be required in some cases. MDT Metal 300PRC AICS magazines are manufactured from high-strength steel and finished with Cerakote Elite for the ultimate in durability and corrosion resistance. 223-sized cartridges (which includes 300 Blackout) is the most reliable option for running mini calibers through a short action. They do not work with the following inlets Ruger American in 204/223/556/300AAC, Browning X-bolt, Winchester XPC and may require fitting in Winchester Model 70. MDT magazines are guaranteed to work in our TAC21, LSS, LSS-XL, HS3, ESS and ACC chassis systems. Although not unbreakable,Р’В they have driven over these magazines with cars and trucks which did not break them. TheseР’В magazines have been through vigorous testing.Р’В MDTР’В uses high quality strength polymer with a high glass content to ensure durability and strength.

Please contact us if you have tried other calibers in our magazines.Manufactured from high quality Polymer and uses a tempered steel spring.

Minor adjustment of magazine height may be required but does not work with the Magpul Hunter stock for Ruger American in 223REM / 204RUG / 300AAC. The 6mm BR magazine is offered for the 6mm BR and family of cartridges, and are available in 12 round capacity. 223 Polymer magazines will work the Magpul Hunter stock for Remington 700 with Detachable Magazine. 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.

300 Blackout was designed to feed on AR-15 magazines, and may or may not feed from an AICS magazine in your bolt action rifle.

223 Magazine will accommodate the following cartridges but may require feed lip adjustments and modifications to the internal ribs. Use a metal magazine for this caliber as the feed lips need adjustment.

Pacific tool and Gauge bottom metals- (Configured for AICS magazines).

You can see from the picture below that as the bolt starts to push the case rim, the tip of the bullet contacts the feed ramp and it takes a solid push to get the round to feed into the chamber.

GRS riflestocks- (Configured for AICS magazines) With the MDT magazine, the rounds will feed, but the bullet jackets are getting marked up by the feed ramp of the receiver.

Based on customer feedback, the following systems work well with our magazines, but fitting may be required in some cases. MDT Magazine AICS Long Action 300 Winchester Magnum 5-Round 3.560' for MDT Tikka T3, T3x, Savage Axis Chassis Steel Nitride. It simply is not possible to increase this with a polymer magazine, as the walls need to be much thicker than metal for strength. When it comes to COAL, you are absolutely correct. But many other chassis (and bottom metals) should work.

They do not work with the following inlets Ruger American in 204/223/556/300AAC, Browning X-bolt, Winchester XPC and may require fitting in Winchester Model 70. Of course the mags are optimized for the MDT TAC21 and MDT LSS.

MDT magazines are guaranteed to work in our TAC21, LSS, LSS-XL, HS3, ESS and ACC chassis systems.

Mdt magazine