my father went out the other day and bought a used ( only shot about 30 times ) single action revolver..

it says 357magnum new ruger blackhawk. he has been looking for one but seems he can only find ones for like cowboy shoots with the belt and amo loops on it.
he is looking for something he can use during hunting season something of a nylon type of metarial. it looks to be a 4" -6" barrel just looking at it.
i would appreciate your help on this one.