Recoil is based on bullet weight, powder weight (both direct relationship) and the weight of the gun(inversely). Your question to some extent requires more information; same weight of bullet from the first two will give roughly the same recoil. Not sure which cartridge you are referring to by the 45/10 but for multiple shots, I personally consider the 45 - 120 with 500 gr bullets to be uncomfortable to shoot. The 40 cal is comfortable and the 45-70 with a 450 gr bullet is also comfortable to shoot although more recoil than the 40-65.
cheers mooncoon