You might want to look into the TC shockwave. Have better groups and also loading with the shockwave than the powerbelt.
I shoot an Omega 50 and the shockwave is available in 200, 250, & 300 gr bullet. As I recall, the sabot is black. will measure one this evening and get back to you.
this is a load NOT for close shooting. If you have a 'normal' range of 100 and over then this is a fine load, BUT if you are shooting 100 or less then I would use another load. When I know I will be shooting in close, I use the TC maxi hunter lube bullet. The shockwave 'seems' to need a bit of distance for the polymer tip to work correctly. From what I have seen, it will shoot clean thru a deer at close range, but do wonders at long range, say 150 yards or more.
So, it would seem that one needs to know just about how far he will be shooting when choosing a load. This in just my observation, of course.
Cuz