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| .338 Edge | |
|---|---|
| Type | Rifle |
| Place of origin | USA |
| Production history | |
| Designer | Shawn Carlock |
| Designed | 2001 |
| Specifications | |
| Parent case | .300 Remington Ultra Magnum/.404 Jeffery |
| Case type | Rimless, bottleneck |
| Bullet diameter | .338 in (8.6 mm) |
| Neck diameter | .371 in (9.4 mm) |
| Shoulder diameter | .525 in (13.3 mm) |
| Base diameter | .550 in (14.0 mm) |
| Rim diameter | .534 in (13.6 mm) |
| Case length | 2.850 in (72.4 mm) |
| Overall length | 3.600 in (91.4 mm) |
| Case capacity | 122.5 gr H2O (7.94 cm3) |
| Primer type | Large rifle magnum |
338 Edge (.338/300 Ultra Mag, .338 Ultra Cat) is aWildcatriflecartridge based on the.300 Remington Ultra Magnum round necked up to accept 0.338" diameterbullets.[1] It is gaining popularity as a long-range cartridge due to the wide availability of 0.338" projectiles that have a highballistic coefficient. For instance, the 300-grain (19 g)Sierra Match King has a ballistic coefficient of 0.765[2] and is a popular choice for 338 Edge shooters.[citation needed]
The 338 Edge is similar in ballistics to the.338 Lapua Magnum, but can be chambered in a regular magnumaction without modification, making it an attractive cartridge for shooters looking for the high performance of .338 Lapua Magnum without requiring a special or custom action.
The name "338 Edge" was coined by Shawn Carlock during his work with the wildcat in 2001 in order to distinguish the cartridge from the (then new) slightly shorter338 Remington Ultra Magnum.[3]
Velocities in the 338 Edge are high, and therecoil can be substantial enough to make arifle painful to shoot without a recoil reducing device such as amuzzle brake or suppressor. Recoil is approximately twice that of the popular.30-06 cartridge, for a given weight rifle.[citation needed]