I have fired Ruger Redhawks converted by Hamilton Bowen to .475 Linebaugh and .500 Linebaugh. Both revolvers were fitted with full underlug barrels, 6" and 4" respectively. The .500 with full-power Buffalo Bore ammo lifted as much in recoil as the Ruger Super Redhawk in .454 Casull with Winchester ammo. However, the .500 did not have the sudden and painful torque of the .454 Casull. The full-power .475 loads were even easier to shoot than the .500, but this was likely due to the individual gun weights.
The .475 'training' loads from Buffalo Bore were really quite pleasant.