This box is designed for belted magnums and larger cases in a Rem. M-700 Long Action.
It is the center feed design, and allows for a cartridge overall length of approx. 3.825″.
The receiver and bolt stop must be altered to use this box. Alteration is the same as used on the MBE-3 box.
The box is sold with a flat plate follower.
Outside length is 3.910″. Inside length is 3.825″.