A couple of weeks ago decided to pick up some Glock 21 magazines ordered 6. While placing the order thought what the heck why not buy a couple more for my Glock 17. Somehow I ordered 10 rounders by mistake. Well the magazines got here glad I got 6 new Glock 21 magazines but the 10 shot 17 mags really suck. Thought what the heck I would try the 10 rounders out. But when I tried to load one I could only get 8 rounds in the piece of junk and it took all the force I could muster to do that. On the other hand the new 13 round 21 magazines loaded 13 no problem. What the heck Glock 10 shot magazines that only hold 8 rounds. Are all the 10 shot Glock magazines difficult to load?