Im shooting muzzys at 325 fps out of mine at 68 lbs with a 400 grain arrow for a cool 94 ft lbs of KE. After getting .300 spine arrows, I'm able to get them to within a 1/2" of my field points at 30 yards, and a little under an inch at 40, so I left it at that.

Mine is outfitted with a viper microtune .010 pin sight, doinker chubby hunter 3" stabilizer, and trophy taker.