I'm just going on chrono numbers I've seen in the past, e.g. http://www.hipointfirearmsforums.com/Forum/index.php?topic=32913.0 http://www.hipointfirearmsforums

I'm just going on chrono numbers I've seen in the past, e.g. http://www.hipointfirearmsforums.com/Forum/index.php?topic=32913.0 http://www.hipointfirearmsforums.com/Forum/index.php?topic=3... The only stuff that's consistently making supersonic out of the list is the high velocity stuff. Even Remington Golden Bullet (which Remington advertises as "high velocity" according to the box I have sitting on my desk) falls short of supersonic from pistol length barrels. I guess the fairer thing to say would be that .22LR is borderline but it drops below supersonic pretty quickly once you start shaving barrel length.