I found a 657 Mountain Gun. Test fired it today with about 80 rounds from 180 gold dot hand loads, 215 cast, 210 Horn and Nosler to 250 Fed cast core and 265 Ammo Smith (Kenai Alaska loader).
I shot the best with the 265 load! I think this gun will work for my back packing needs. Its noticeably lighter than my 4" 57 to carry but feels the same to shoot.
I found in bright sun on snow with a lot of shadows, I was having trouble finding the front sight - my front and rear sights are all black. Any recommendations on easier to see sights? Most of my revolvers have a read front.
I'm wondering about tritium sights as this will also be my tent gun while out hunting or camping.