7mm Remington Magnum:The 7mm Remington Magnum is a .28″ caliber, belted, bottleneck cartridge case design, centerfire rifle cartridge. The 7mm Remington Magnum cartridge casing is re-loadable after the cartridge has been fired or spent with various combinations of primer, powder and .284″ diameter bullets.
7mm Remington Magnum Cartridge: |
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| Cartridge Type: Centerfire Rifle. Bullet Diameter: .284″. Primer Diameter: .210″. Primer Type: Large Rifle Magnum. Case Neck Diameter: .315″. Case Shoulder Diameter: .492″. Case Base Diameter: .513″. Case Rim Diameter: .532″. Min. Case Length: 2.490″ / Trimmed. Max. Case Length: 2.500″ / Stretched. Min. Cartridge Loaded Length: 3.150″. Max. Cartridge Loaded Length: 3.290″. Max. Average Pressure: 61,000 PSI. |
7mm Remington Magnum Rifle: |
| Common Barrel Length: 24″. Rifling Twist Rates: 1 in 9″ – 1 in 10″. Bore Land Diameter: .277″ / 7.035mm. Bore Groove Diameter: .284″ / 7.213mm. |
7mm Remington Magnum Ammunition: | |||||
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| Ballistics Table, Test Rifle: Weight – 8.5 Lbs. Barrel Length – 24″. | |||||
| 7mm Rem. Mag. Cartridge Manufacturer | Bullet Weight Grains | Bullet Ballistic Coefficient | Muzzle Velocity FPS. | Muzzle Energy FT.LBS. | Recoil Energy FT.LBS. |
| Norma | 125 | .315 | 3,365 | 3,143 | 19.92 |
| Hornady | 139 | .486 | 3,240 | 3,239 | 21.57 |
| Remington | 140 | .486 | 3,175 | 3,134 | 21.24 |
| Norma | 150 | .536 | 3,166 | 3,388 | 22.99 |
| Hornady | 154 | .525 | 3,100 | 3,286 | 23.13 |
| Norma | 156 | .330 | 2,953 | 3,020 | 22.16 |
| Winchester | 160 | .512 | 2,950 | 3,092 | 22.82 |
| Hornady | 162 | .550 | 3,030 | 3,302 | 23.93 |
| Federal | 165 | .458 | 2,950 | 3,188 | 23.69 |
| Nosler | 168 | .652 | 2,880 | 3,094 | 23.51 |
| Norma | 170 | .378 | 2,953 | 3,292 | 24.60 |
| Remington | 175 | .427 | 2,860 | 3,178 | 24.51 |
7mm Remington Magnum History:
Remington introduced their new 7mm Remington Magnum cartridge to the public in 1962, this cartridge received great reviews by many as the bullets that could be used carried a very high ballistic profile promising a flat trajectory for long range hunting use in North America. Remington chambered the 7mm Remington Magnum cartridge in their Model 700 bolt action rifle in 1962 and it featured a 1 in 9″ rifling twist which easily stabilizes, very long, heavy-weight bullets.
The 7mm Remington Magnum has been chambered by most major high power rifle manufacturers for quite some time and they have offered these rifles with rifling twist rates from 1 in 9″ – 1 in 10″. Because of the velocity range and quirky nature of .284″ diameter bullets in that velocity range, the 7mm Remington Magnum will give varied terminal ballistic performance results with various rifling twist rates.
1 in 9″ Twist Rate: 160 – 175 grain bullets, minimum barrel length 26 inches for maximum performance and accuracy.
1 in 9.5″ Twist Rate: 140 – 160 grain bullets, minimum barrel length 24 inches for maximum performance and accuracy.
1 in 10″ Twist Rate: 115 – 140 grain bullets, minimum barrel length 24 inches for maximum performance and accuracy.
7mm Remington Magnum Uses:
The 7mm Remington Magnum has enough power, due in part to its large case capacity for powder, using 140 grain bullets it will drop deer at 500 yards, using 160 grain bullets it will take elk at 500 yards as well. This is truly an excellent big game cartridge for hunting all of North America’s big-game animals. The 7mm Remington Magnum offers one of the best compromises of power, recoil and bullet selections of all high power class of rifles.
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While much has been written about the 7mm Rem Mag cartridge it truly is a great hunting cartridge and is used as such worldwide. In North America 140 grain bullets are used quite successfully for harvesting all deer species, for the largest deer, such as moose, premium ammunition loaded with 160 grain bullets is a very good choice.
7mm Rem Mag Rifle: | |||
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| Rifle barrel length: 24 Inches. Rifle-scope mounted height: 1.8 inches. | |||
7mm Remington Magnum Ammunition: | |||
| Cartridge manufacturer: Hornady. Bullet diameter: .284 Inch. Bullet weight: 139 Grains. Bullet ballistic coefficient: .486. | |||
7mm Remington Magnum Ballistics: | |||
| Rifle zeroed at 240 yards. Maximum point blank range is 290 yards. Bullet trajectory set at 2 inch mid-range rise. | |||
| Bullet @ | Velocity / FPS. | Energy / FT.LBS. | Trajectory / IN. |
| Muzzle | 3,240 | 3,239 | – 1.8 |
| 100 yds. | 3,033 | 2,840 | + 1.7 |
| 200 yds. | 2,837 | 2,484 | + 1.3 |
| 300 yds. | 2,649 | 2,166 | – 3.3 |
| 400 yds. | 2,469 | 1,881 | – 13.0 |
| 500 yds. | 2,295 | 1,626 | – 28.3 |
| Abbreviations: | |||
| / FPS. = Feet Per Second. / FT.LBS. = Foot Pounds. / IN. = Inches. | |||
7mm Rem Mag Rifle: | |||
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| Rifle barrel length: 24 Inches. Rifle-scope mounted height: 1.8 inches. | |||
7mm Remington Magnum Ammunition: | |||
| Cartridge manufacturer: Hornady. Bullet diameter: .284 Inch. Bullet weight: 154 Grains. Bullet ballistic coefficient: .525. | |||
7mm Remington Magnum Ballistics: | |||
| Rifle zeroed at 267 yards. Maximum point blank range is 312 yards. Bullet trajectory set at 3 inch mid-range rise. | |||
| Bullet @ | Velocity / FPS. | Energy / FT.LBS. | Trajectory / IN. |
| Muzzle | 3,100 | 3,286 | – 1.8 |
| 100 yds. | 2,915 | 2,905 | + 2.4 |
| 200 yds. | 2,737 | 2,562 | + 2.5 |
| 300 yds. | 2,567 | 2,253 | – 2.0 |
| 400 yds. | 2,403 | 1,974 | – 11.9 |
| 500 yds. | 2,244 | 1,722 | – 27.8 |
| Abbreviations: | |||
| / FPS. = Feet Per Second. / FT.LBS. = Foot Pounds. / IN. = Inches. | |||
Check out our in depth rifle ballistics chart for more.
