Quote: Several times during testing, some of the factory ammo resulted in the bullets only making it 21" up the 23-1/2" barrels, and had to be pushed out with a cleaning rod.
That's not funny at all! Dangerous! Keep at it.
It's both, when I was working up a subsonic 22 hornet load I loaded a few internet recipes that claimed 1050-1075fps and didn't make it out of the tube either. One of the ones that did only went 850fps, I had to go .4gn higher to get a marginally safe load and went .5gn above to be safe. It doesn't sound like much but with trailboss in that small a case it does fill it up a lot more.