How many can you put in it?Magpul 40rd.
I shuddered thinking about mag dumping a D60 filled with 300blk. I'm with Daezee, I don't think the rotary mechanism would work right with a larger projectile. Good luck though!Not sure.I have a Pmag Drum mag if you want to try it out. Im not rich enough to blow through that much 300 BLK. lol