My NDR mag is metal and no burrs. It started out great and now it almost doesn't work. At first it was just one factory mag and then others started doing it. I took a couple apart (bit of a pain) and didn't notice anything. I thought they would be full of lead residue or something.Same mags acting up ?
Make sure there are no burrs in the mag well
No burrs on the mag body
No burrs inside the mag body , follower
There has to be a reason only those mags are acting up
They just don't seem have the required nose up orientation. If I try to force it closed the bullet will get a notch pressed into the bottom from the edge of the chamber. Not all the time but pretty frequently.