The FZH Mauser 98 is available in standard or magnum length.(That is what H&H uses). They are based on riginal Mauser dimensions. The Weatherby Mark V action would work but would not be the preferred action for an H&H cartridge. A Weatherby FN in .300Mag could be mod. to accept this cartridge but my original point was that any Mauser 98 large ring would do.