Sounds to me like that is a great gun and plan for Spring Turkeys. We have been shooting a lot of steel this year to see for ourselves how it performs. #3 Kent fasteel does very well in an I/C choke (or mod) on Geese and Ducks and Pheasants at fairly long ranges. Dunno why it wouldnt perform well on Turkeys. #4 should be ok as well...Have fun..