I just bought a optima pro with 29in barrel, was wondering what bullet powder combo to shoot. I been using 240xtp with 90grn pyrodex winchester 209 caps out of a new frontier cascade magnum and a cva buckhorn both have 24in barrels and out to 100yds groups was around 3inches. Will the optima shoot as good as those 2 guns? What would you recomend for a scope? Been looking at a simmons 4x12 shotgun scope, would that be a good choice?