From the information on their site, it sounds very promising. I have never had any issues running their rounds through mySig, Glock, or HK but they will not extract properly from my R9. All the rounds I've tried always went bang but the extractor kept slipping off. To make things easier, I've switched all my carry & HD ammo to Gold Dots since they will work in all my pistols. I'll still probably buy a box or two of these to try them out.