"Medium" refers to the length of the rifle action this magazine is compatible with. These magazines work with the Medium, XM and XM Plus chassis and bottom metals available. They are great for people who want to run either a really long short action caliber that doesn't fit in a short action mag, or a short long action cartridge that may have trouble feeding in a standard long action magazine.
• COAL: 3.240"
• DSSF - Double Stacked Single Feed
• Nitride Steel with Cerakote Elite Finish
•CALIBERS
300 WSM
6.5 PRC
270 WSM
7mm WSM
325 WSM