A couple of us running them in 7tw 22 dashers. 2 guys w 4 groove and me w a 5r. All running them around 3100fps. The 4 grooves have more issues. Definitely can shred some jackets...
I wouldnt push em much harder than 3150ish and in long strings. RPMs are what blows them up and at 3150 in a 7tw they are at 326k. Over 300k is when bad stuff happens