The two rifles and chamberings you selected, need little more than a good recoil pad. Neither of them are hard kickers, and if the rifle fits you, they should do fine with Pachmayr Decellorator recoil pads!

I'm not one to use Murcury recoil inserts in a double rifle, no matter the recoil. IMO, the extra weight in the butt stock throws the ballance off! Changeing the way a double rifle recoils somethimes destroys the regulation of the rifle! The recoil, and muzzle flip is a great part of the regulation of a double rifle. The more recoil the rifle developes, the more disturbing the muzzle flip henders regulation!