You cannot compare the recoil of a centre fire rifle with a muzzle loading rifle. The first is a jab and the second is a push - no similarities.
Given that if you'll allow me, a .62 cal jaeger rifle with 120-140 grains of FFg has significant recoil. I would not want to shoot it twenty five times on a trail walk. But for one or two shots in a day's hunting, it's a piece of cake. We shoot my buddy's .75 English sporting rifle with 120 grains of powder at offhand targets without discomfort. That rifle weights about 8 pounds. I would not enjoy shooting the same number of rounds out of a .338 Winchester Mangle-um.