8mm Remington Magnum

8mm Remington Magnum (center) with .308 Winchester (left) and .375 H&H Magnum (right).

Type

Rifle

Place of origin

United States

Service history

In service

Never issued

Production history

Designer

Remington Arms Company

Designed

1978

Manufacturer

Remington

Produced

1978-Present

Specifications

Parent case

.375 H&H Magnum

Case type

Belted

Bullet diameter

.323 in (8.2 mm)

Neck diameter

.355 in (9.0 mm)

Shoulder diameter

.487 in (12.4 mm)

Base diameter

.513 in (13.0 mm)

Rim diameter

.532 in (13.5 mm)

Rim thickness

.052 in (1.3 mm)

Case length

2.85 in (72 mm)

Overall length

3.65 in (93 mm)

Case capacity

99.0 gr H₂O (6.42 cm³)

Rifling twist

1 in 10 (1 in 254 mm)

Primer type

Large Rifle

Maximum pressure (C.I.P.)

63,817 psi (440.00 MPa)

Maximum pressure (SAAMI)

65,000.0 psi (448.159 MPa)

Ballistic performance

Bullet mass/type	Velocity	Energy
200 gr (13 g) Partition type	2,900 ft/s (880 m/s)	3,734 ft·lbf (5,063 J)
200 gr (13 g) Bonded	3,050 ft/s (930 m/s)	4,132 ft·lbf (5,602 J)
180 gr (12 g) Protected point	3,210 ft/s (980 m/s)	4,119 ft·lbf (5,585 J)
180 gr (12 g) Polymer tipped	3,315 ft/s (1,010 m/s)	4,394 ft·lbf (5,957 J)
220 gr (14 g) Soft Point	2,965 ft/s (904 m/s)	4,296 ft·lbf (5,825 J)

Test barrel length: 22 in (56 cm) 24 in (61 cm) and 26 in (66 cm)
Source(s): Remington / Nosler /Sierra

The 8mm Remington Magnum belted rifle cartridge was introduced by Remington Arms Company in 1978 as a new chambering for the model 700 BDL rifle. The 8mm Remington Magnum's parent case is the .375 H&H Magnum. It is a very long and powerful cartridge that cannot be used in standard length actions, such as those that accommodate the .30-06 Springfield.

The 8mm Remington Magnum was intended to compete with the .300 Weatherby Magnum and .338 Winchester Magnum. Remington’s decision to use a metric bullet may have been prompted by their past success with the 7 mm bore diameter.

Even though the 8mm Remington Magnum has never been very popular, it is a very suitable cartridge for the hunting of elk, moose, caribou, and larger African antelope. However, the .338 Winchester Magnum had a 30-year head start on the market, and is short enough for medium length actions, which increases the models of rifles it could be produced in. It is also available with heavier bullets, although this isn't a problem for people that load their own rounds of this caliber. Bullet selection is quite critical with the 8mm Remington Magnum since the bullets have to be designed and constructed to hold together at magnum velocities.

The 8mm Remington Magnum has 6.43 ml (99 grain) H₂O cartridge case capacity.

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Wikipedia