I never shoot more than 100gr. in any of my muzzleloaders.
Recoil is not a factor. Although at 6'5" 210lbs, I suspect my frame absorbs
some "kick"! I love Tasco Pronghorn scopes, for shotguns, and muzzle.
The only trouble is in rain, the outside of the glass collects moisture.
Probably non coated lens. I have solved this by putting on NAPA windshield rain slick, or whatever it's called. Again, for me the Huntsman
has no recoil... Hope this helps....Scotty