Not really my normal thing, but can trade into this Schutzen pretty well.
I haven't seen it, but he thinks it is a 50 cal and has been in his mothers closet for 30+ years. He said he can't see any rust in the barrel and the trigger/lock work just fine.
He hasn't fired it and knows nothing about muzzleloaders.
Its about an hour and a half away.
Watcha' think?