.35 caliber
About 34 years ago I bought a Marlin 336 cs in .35 rem., I shoot a 200 grain bullet ( Winchester power points ) I have taken many deer with this rifle , it is easy to shoot , shoulders well , got a low power scope on it (4x ) great bush gun ( 20 inch barrel ) I understand that it's good to around 150 yards , for everything ( deer , black bear , moose ) recoil is not hard to manage , I had 30-30's before and sold them and stayed with the .35 , for me it's been an all round cartridge that's never let my down , I never understood why it wasn't more popular than the 30-30 , probably because of advertisng method's . I won't part with mine for anything , although some of the newer rounds are looking even better ( Marlin 308 express ) ?? I think the muzzle velocity is 2100f.p.s. and it sure knocks whitetails down , one round . thanks Joe