Those calibers both have one factor in common; they have designed for m98 mauser, normal size or magnum, depends on which of them.

The Mauser magnum system are the best for this cartridges , but August Schüler used normal system for all his cartridges . A compromise and you need some modifications on the system ---and the cartridges , especially the deep seating of the bullets . I know the problem . My 500 Schüler ( 12,7x70 Schüler , 500 Jeffery ,... ) is a custom rifle made in the ninetieth with a magnum system and the 11,2x72 is a original Schüler from the twentieth with a M98 standart system . Was not easy to reload quickly by buffalo hunting ! The rebated rim is also a problem .