I'm deciding on a moose load for my Whelen in the next few months. Narrowed it down to slow and heavy (250 NPT) and lite and fast (200 TTSX). Would have thrown the 225 NAB into the fray, but they are like hen's teeth these days. All depends on how things shoot. Haven't got the speed I was hoping for with the 200 TTSX yet - just a hair above 2,700 fps.