That is odd for speeds to be that far short of what's listed. All of the loads if cronoed in my TCU have been way faster than what the books list, probably because the books loads were shot in a 10" contender!
One other thing I think these types of rifles will be great for is turkeys. IME if you hit one anywhere but the head with your typical varmint rifle you'll have a hell of a mess. I want to work up a load using 150-160gr bullets going slow enough to not shred a gobbler but fast enough to have a decent trajectory out to 150-200.
