7mm Remington Magnum

The 7mm Remington Magnum rifle cartridge was introduced as a commercially available round in 1962, along with the new Remington Model 700 bolt-action rifle. It is a member of the belted magnum family that is directly derived from the venerable .375 H&H Magnum. The original purpose of the belted magnum concept taken from the .300 H&H Magnum and .375 H&H Magnum, was to provide precise headspace control, since the sloping shoulders, while easing cartridge extraction, were unsuitable for this purpose. Improved cartridge extraction reliability is desirable while hunting dangerous game, in particular when a fast follow-up shot is required. The 7mm Remington Magnum is based on the commercial .264 Winchester Magnum, .338 Winchester Magnum, and .458 Winchester Magnum, which were based on the same belted .300 H&H Magnum and .375 H&H Magnum cases, trimmed to nearly the same length as the .270 Weatherby Magnum.

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1962  Wikimedia, Wikidata
rifle cartridge, 

.246 Purdey, .280 British, .303 British, .375 Holland & Holland Magnum, .450 Black Powder Express, .470 Nitro Express, 

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Location: KML, Cluster Map, Maps,

Frameless

Munit03

7mm Remington

7mm Remington Magnum

7mm Rem

.284 Winchester with .223 Rem and .308 Win

7mm STW

Type	Subtype	Date	Description	Notes	Source
commons	image		Munit03		Commons
commons	image		7mm Remington		Commons
commons	image		7mm Remington Magnum		Commons
commons	image		7mm Rem		Commons
commons	image		.284 Winchester with .223 Rem and .308 Win		Commons
commons	image		7mm STW		Commons