i just bought a Remington 870 sps t super mag turkey gun with a 23 inch barrel and a indiain creek black diamond striker choke. now what is a couple of the best turkey loads that i can get to make it a long range gun? i am wanting a 60+ yard gun. now i doubt i would ever shoot a turkey that far. i am just trying to get a gun that will be able to do this. so i am needing the best shot size for turkey with the shell that has the most knock down power. thanks for your help.