First congratulations on the tag. That would be a dandy tag!!

I am assuming you need to hunt with open sights??

I would go with a peep sight type open sight system. And I would go with a heavy conical. I shoot a 525 grain 50 caliber conical out of my MK-85. With a peep sight I can stay on target with no problem out to 160 or even 170 yards without any drop compensation. Just sight the rifle dead on for about 140 yards. You will easily be within point blank range out to 160 or so. And with practice a 160 yard shot with good peep sights should not be a problem.

Personally I would not attempt those ranges with a round ball. But that is just me. I limit my shots to 100 yards with a roundball. That is about as far as I can accurately shoot a roundball out of my flintlocks. And I have never shot round balls out of my inlines. Tom.