Not sure on the .50/90 on a light action single shot. For a hunting rifle that is not shot much - I guess it's OK.

This is my bro shooting his Shiloh Sharps .50/90, with a 28" #3 Magnum taper McGowen barrel. The rifle weighs 11.4 pounds and after shooting a bunch with the BP loads, he complains of the recoil. He's shooting 91gr. Swiss 1 1/2 with a 600gr. bullet.

Yeah - I know, compared to a .500 Nitro, it doesn't kick, however when you are shooting a rifle competition comprised of perhaps 30 or more rounds, that number of rounds does add up and wears on you after a while.

I used it at rendezvous last Sept, picking up 2nd place in the Quigley match. Taylor got 3rd. and buddy Len, from our city, won 1st with his Navy Arms .45/70. Must have fried him a bit with me beating him with his own rifle, but then, he shot first after each range change and I got to see the hits, 2 shots at each - all offhand except for 2 targets out to 650yards & as close as 110yards. That was a fun match.