More modern magnums continue this practice, but headspacing on the belt is not necessary with their more sharply angled shoulders.

[2] The cartridge offered superior ballistics to the .30-06 for long range, and the .300 H&H is almost as versatile with all bullet weights and types, especially if well-developed handloads are used.

[4] The long .300 H&H case was designed for loading cordite, and those two modern magnum cartridges offered similar powder volume in a shorter case better adapted to ballistic uniformity with United States Improved Military Rifle (IMR) smokeless powder.

[5] It has never been as popular as the .30-06; but the mystique of well-crafted rifles chambered for the .300 H&H keeps the cartridge in use despite its repeatedly reported demise.

As it was common for rimless hunting cartridges, a rimmed (beltless) variant, at the time called just "Holland's Super .30"[6] and now sometimes named .30 Super Flanged H&H, was developed simultaneously for break-barrel rifles and combination guns.