Somebody here, I'm thinking maybe Old Lincoln had this issue and carefully took a pair of pliers and tweaked the feed lips just a tad and cured the issue. They kind of open up towards the front and if you bend them just slightly more towards parallel they will hold the front of the cartridge a little more secure.
Several mentioned having a mag pouch that follows the angle of the top of the mag is beneficial as well. Most mag pouches are cut that way, at least the ones I've seen.
In Memory of Paul "Dietrich" Stines.
Dad: Say something nice to your cousin Shirley
Dietrich: For a fat girl you sure don't sweat much.
Cue sound of Head slap.
RIP Muggsy & TMan
"If you are a warrior legally authorized to carry a weapon and you step outside without that weapon, then you become a sheep, pretending that JOCKO will not come today."