Just found this site predicated on a friend giving me a 50 cal Markesbery 24 inch, SS barrel and laminated stock. He says he didn't use it much but recommended a 50 (777) grain load for the 295 Powerbelt projectile. I know I've got a basket full of accesories to pick up but, was wondering if there might be a few hints on what to buy. Anyone ever heard of the Markesbery BP?