You might want to ask this question in the muzzleloader forum. You should get a few responses. I shoot muzzleloaders but have no experiencewith the Yukon.
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You've heard of the three ages of man - youth, middle age, and 'you're looking wonderful'. Francis Cardinal Spellman
I bought the yukon this year as an economical way to get into muzzleloading (it's addictive, I since got a t/c renegade and like the flintlock more). the Yukon is a great gun for the money. It has an interesting action and is extremely accurate. at 50 yards off the bench 7 shots printed into one big hole with the last two touching eachotherabout two inches to the side of the group. I shot a spike with it at about 50 yards and he ran about 20 before piling up. I shot him with 100 grains of pyro rs and a 240 hornady xtp.