while ejecting the rounds by hand the follower would not come up all the way. Also the ends of the rounded case stop taps were sharp and digging into the brass when loading and adding drag when trying to push forward when feeding.
So disassembled the magazine VERY CAREFULLY due to the compressed long 17 inch mag spring!
Make sure to keep finger over it when sliding back that end cap.Polished up the case stop tabs and then cleaned the inside of the magazine and sprayed inside with dry graphite lube.
Reassembled and now it works smooth and the follower doesn't stick. Also the rounds feed out with thumb pressure with no digging in of the stop tabs.
Job completed.