Believe it or not, most 'jams' I have seen were because the feed lips on the magazine were bent or improperly formed on an aftermarket magazine.
And limp wristing!
"limp wristing" Just purchased a
glock 36 45 cal. Have been using a
glock 17 9 mm. Am having problems with
my wrist being wobbly. Any advice? Yeah.
I know-more practise.