The 300 H&H Belted (Rimless) and Flanged (Rimmed) Magnums were introduced in 1925, by Holland & Holland of England. Only a few custom rifle makers produced rifles chambered in this caliber in the U.S.A., and most were in the rimless version. This caliber had limited popularity and reviews were very mixed with some people saying it was the best 30 caliber made, and others saying only as good as the 30-06. The rimmed version was used in single and double barreled rifles and the rimless version was used in bolt-action rifles. |