.300 H&H Magnum [SEP] designer
.300 H&amp;H Magnum
The .300 H&H Magnum Cartridge was introduced by the British company Holland & Holland as the "Super-Thirty" in June, 1925. The case was belted like the .375 H&H Magnum, and is based on the same case, as also is the .244 H&H Magnum. The belt is for headspace as the cases' shoulders have a narrow slope rather than an actual shoulder. More modern magnums continue this practice, but headspacing on the belt is not necessary with their more sharply angled shoulders. The cartridge
. However, the .30 Super can be discharged in a .300 H&H Magnum rifle. As most significant difference between the cartridges was that the .30 Super was loaded to a far lower pressure than the .300 H&H Magnum. The .30 Super drove a bullet at while the .300 H&H Magnum was loaded with the same bullet at .
See also.
- .30-06 Springfield
- .300 Winchester Magnum
- .300 Weatherby Magnum
- .300 Winchester Short Magnum
- .300 Remington Short Action Ultra Magnum
- .300 Remington Ultra