Bison Scope Mounts

[Boreal]

Earlier this year I picked up an unfired Bison. I'm trying to put a scope on it. I've always liked Leupold mounts and rings and when I looked the rifle up on their website it showed a part number and I placed the order. The mounts that came in the mail today are completely wrong. They're made to fit a flat surface not round like on the rifle and the hole spacing on the front mount is too long by over a 1/4 inch. Surprisingly, Leopold customer service was of no use.
So does anyone know of a good quality, steel mount that will fit on a Bison?