I shoot a lot of the Hornady 158 gr lswc. With Bullseye anywhere from 3 gr to 3.6 gr. With Universal Clays for my hotter loads 4.2 to 4.4 between lswc and lswchp.

I think your load of 3.5 Win 231 should be a light sweet shooter. Let us know how they work out for you.