I feel a .357 is too light for deer, Better off with a Thompson contender of Lone eagle in a medium low pressure rifle caliber like 7X30 waters, 35 remington or the like. In conventional pistol rounds a 41 magnum and up. I'd pic a fixed 2 X handgun scope, dont skimp on the scope. Heavy caliber pistols generate alot of recoil and can quickly destroy a Walmart POS.