I finally ordered the Gen4 Glock 20 and I'm starting to think about (and acquire) what I'll need for it when it gets here. For lube I decided to try some of that Froglube stuff. I've ordered a 10mm->.40 conversion barrel from KKM. For the fun stuff and home defense, I ordered some Underwood 135 gr. hollow points. I'm wondering though, is there some clean burning, preferably weak (I'm new to pistol shooting), 10mm ammo that I can run through the new G20 to break it in with the stock barrel? Heck, even if it's not clean burning, what cheap range ammo would you guys recommend? (and for those of you from my other thread, I've decided that Yes I'm going to try and get one of those Advantage Arms .22 conversion kits. The allure of shooting for virtually free is just too much.) Thanks for any info and/or perspective here! Chuck Wanna kill these ads? We can help!