Posting this for a friend who's a computerphobe, so will do the best I can with what information I can give...
He recently picked up a new Browning BLR takedown chambered in .270 win.
He was given a bag of once/twice fired .270 brass, has full length resized them, but the rifle won't take them.
Cycling it to feed is very sticky or problematic, to the point where he has to manually remove the cartridge after it won't accept it.
Any ideas for what he's done wrong/can try?