My brother in law has a Kimber Warrior like mine.
Unlike mine, his has developed an odd habit that has be scratching my head.
His gun is spreading the feed lips on magazines. He has two McCormick powermags that are very hard to get into or out of the magazine well.
I leant him one of mine today - before firing, it dropped free easily. after 20 or so rounds, it was pretty snug.
I am at a loss. I didn't notice him doing anything odd while loading the mags.