MDT AICS-pattern metal magazines are manufactured from high strength steel, nitride-finished and coated with Cerakote Elite for ultimate durability and performance.
MDT Metal Magazines - Long Action, are manufactured for .300WM and .338LM calibers. The .300WM can also be used for 7mm, 30.06 and 6.5x55 calibers. In some cases the feed-lips may need to be bent. The maximum cartridge overall length that will fit in this 3.715 magazine is 3.615.
Important. Standard size magazines will not work with Tikka T3 actions. Our chassis systems for Tikka T3 have been manufactured to accept the custom 3.560 length magazine. All our other chassis are sold with the 3.715 magazine well. (If you purchased a rifle with our chassis on it, please check with the manufacturer to find out which magazine length is used).
338LM 4.050 magazine is not applicable for MDT Chassis Systems.
Big Book Catalog, Issue:73, Page:182