I have an old Winchester '97 that I want to use for turkey hunting this coming spring. My question is are these old guns safe with the 2 3/4" Turkey Loads made by Winchester, Remington, & Federal with 1 5\8 oz. shot and 4 dram equiv. powder ? Should I stick with the old maxium load of 1 1/4 oz. shot, 3 3/4 dram equiv powder, which I 've killed many turkeys with before ? My '97 seems tight, trigger sear is good, everthing works fine, built 1927.