I’ve shot several thousand. I loaded 500 today, 135s over Titegroup today for a couple of upcoming matches. I’m only pushing them about 1000 FPS out of a Glock 34 and 2011 to make Minor Power factor. They’re more than accurate enough for 3 gun and USPSA.
Don’t over crimp them or you will damage the coating and they will shoot like crap. I know guys that push them pretty hard out of Open pistols without any issues.
I’ve heard of guys having trouble stabilizing the 147s if they don’t push them fast enough.There is a ton of info on the Brian Enos forum.