There's not much muzzle blast from a 18" 308 with full power loads, and with the Reduced Recoil loads, it will have less recoil than a 30-30 with 4x the range.
First of all, the muzzle blast is hellacious, as I said.
Second of all, if you can get less recoil and four times the range of a 30-30 out of a reduced .308 load you have somehow created a whole new science of ballistics and basic Physics.
