There is no need to load 10 in the rifle on every stage. Here is where we can get creative. I like to see 5, 6, 8 etc with widely varying distances and arrays with the rifle. After all, no one comes to WB shooting for lever gun toggling. No, the charm of WB is the utilization of the classic 1911. Less rifle can allow more pistol.
5 should be the standard load out for the shotgun. Many old 97s have been cratered trying to wedge 6 in a 5 round tube. There's no sense in it, it's nonsense. 5 is plenty.