Went shooting again today. Found some hotter caps, and using the same load (110 gr Tripple 7 FFg and 370gr maxiball). With hotter caps, I shot 1 1/2 inch high at 50yds, 2 inches low at 100yds, and 9 inches low at 150. Shot sub MOA group at 100 yds with the factory open sites. I am good with this for now, and after this hunt will probably work on getting a peep site installed with greater elevation adjustment, then work up some additional bullets and loads.

Thanks everyone for your replies and thoughts.