Improved cartridge extraction reliability is desirable while hunting dangerous game, in particular when a fast follow-up shot is required.

He noticed the need for a lower recoil cartridge capable of taking elk-sized game at the longer ranges common where he guided clients.

He found that the .300 Weatherby Magnum produced too much recoil for many hunters, resulting in poor shot placement, and the .270 Winchester combined with the bullets available at the time, lacked the downrange energy to cleanly kill game.

The heaviest commercially loaded ammo available for the 7mm is 195 grains,[6] while the .30-06 Springfield can be loaded with bullets up to 220 grains, but for a .308 caliber to equal the flat trajectory and penetration of a .284 diameter 180-grain bullet with a muzzle velocity of 2,860 ft/sec (870 m/s), as offered for the 7mm Remington Magnum, requires muzzle energy close to what the .300 Winchester Magnum can offer, i.e. well beyond what the .30-06 can deliver.

(Commission Internationale Permanente pour l'Epreuve des Armes à Feu Portatives) rulings, the 7mm Remington Magnum case can handle up to 430.00 MPa (62,366 psi) Pmax piezo pressure.

Due to its high ballistic coefficient, which is common in all .284" caliber cartridges, the 7mm Rem Mag bucks wind efficiently.

It has also been chambered in sniper rifles as the US Secret Service counter-sniper team has deployed this cartridge in urban areas along with the .300 Winchester Magnum.

[9] Popular online gun author Chuck Hawks calls the 7mm Remington "one of the great all-around rifle cartridges.

These 21st-century ballistic twin short fat magnum cartridges can handle 440.00 MPa (63,817 psi) Pmax piezo pressure according to the C.I.P.

The .375 Ruger cartridge case was used by Hornady as the basis for new long-range cartridges, since it had the capability to operate with high chamber pressures (65,000 psi (448.16 MPa) Pmax piezo pressure according to the SAAMI), which combined with a neck and barrel throat optimized for loading relatively long and heavy very-low-drag bullets without the need to seat the bullets deeply recessed into the case result in adequate muzzle velocities from bolt-action rifles.