Tried a box of 200, 45ACP BDX to break in my Glock 21 Gen4 when new, and thought the gun was a lemon. Turned out the BDX ammo was the problem, about 6 stovepipes, 13 slide jams and about 20 fail to feed out of the box/bag of 200. No crimp at all, and many of the bullets were being pushed deep into the cases while loading as the bullets were that loose in the brass. This was about two years ago, and local dealers said that a brother-in-law was loading stuff for BDX for awhile and pretty much ruining the name for awhile.................either way I won't chance it again. I have since fired about 850 Winchester and Norinco factory loads and 100 of my own reloads through it without any malfunctions or issues. Choose your own adventure, and good luck