Seating issues - Alexander Arms 6.5 Grendel 10 Rounds Magazine

At first the magazine looks great and feels like a good quality mag. But inserting the mag it is not smooth at all, its is gritty and slugish. Like there is too thick of a coating on the mag. You can still use the mag but tends to be a push tap and do a bruce lee palm strike to make sure its in there. Good thing is that have not had any feeding issues.