Whether your rifle will shoot them will only be know by trying them. Although in some CVA rifles there is a 400 gr limit on concals according to the manufacturer. You might want to check your manual and make sure that would be considered a safe load.

Something you might want to try to save money over the Powerbelts are 270 gr Buffalo Ball-ets, 300 gr CVA Buckslayer Conicals, or 370 gr Lyman Great Plains. Also my CVA shoots REAL conicals very well. As for shooting them out to 150 yards, I never tried that yet...

Good luck with your rifle.