Remington has a newly designed magazine for the 597 lr.
Anyone who has a 597 knows the magazine is trash, the double stacking design caused feeding problems due to the double stack "overlap" of each round. It was too much
The ammo would bind up on the sides of the mag and the spring didnt have the guts to push the ammo up.
The inside of the new mag is smaller (left to right) so the ammo does not overlap as much and the binding is no longer a problem.
Remington had to make the baseplate a little deeper (1/8") so 10 rounds could still be loaded. (see pic )
It feeds beautifully, even the wax coated ammo.
Looks like the problem has been resolved.
If you are still under warranty you should be able to exchange old for new.
If the rep on the phone says no, hang up, call again you should get another rep ... and try again.
My 597 is about 5 years old so I paid for mine ... $27.95 for two (shipping included)