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| .300 Weatherby Magnum | ||
|---|---|---|
| File:300 Weatherby.jpg .300 Weatherby cartridge | ||
| Type | Rifle | |
| Place of origin | USA | |
| Production history | ||
| Designer | Roy Weatherby | |
| Designed | 1944 | |
| Manufacturer | Weatherby | |
| Produced | 1944 | |
| Specifications | ||
| Parent case | .300 H&H Magnum | |
| Case type | Belted, bottleneck | |
| Bullet diameter | .308 in (Script error: No such module "Math". mm) | |
| Neck diameter | .336 in (Script error: No such module "Math". mm) | |
| Shoulder diameter | .492 in (Script error: No such module "Math". mm) | |
| Base diameter | .512 in (Script error: No such module "Math". mm) | |
| Rim diameter | .531 in (Script error: No such module "Math". mm) | |
| Case length | 2.825 in (Script error: No such module "Math". mm) | |
| Overall length | 3.562 in (Script error: No such module "Math". mm) | |
| Rifling twist | 1-10 | |
| Primer type | Large rifle magnum | |
| Maximum pressure | 65,000 psi (Script error: No such module "Math". MPa) | |
| Ballistic performance | ||
| Bullet weight/type | Velocity | Energy |
| 150 gr (Script error: No such module "Math". g) SP | 3,540 ft/s (Script error: No such module "Math". m/s) | 4,173 ft·lbf (Script error: No such module "Math". J) |
| 165 gr (Script error: No such module "Math". g) SP | 3,390 ft/s (Script error: No such module "Math". m/s) | 4,210 ft·lbf (Script error: No such module "Math". J) |
| 180 gr (Script error: No such module "Math". g) BST | 3,250 ft/s (Script error: No such module "Math". m/s) | 4,223 ft·lbf (Script error: No such module "Math". J) |
| 200 gr (Script error: No such module "Math". g) Partition | 3,060 ft/s (Script error: No such module "Math". m/s) | 4,158 ft·lbf (Script error: No such module "Math". J) |
| 220 gr (Script error: No such module "Math". g) Rn-Ex | 2,845 ft/s (Script error: No such module "Math". m/s) | 3,954 ft·lbf (Script error: No such module "Math". J) |
| Test barrel length: 26 Source(s): Weatherby [1] | ||
The .300 Weatherby Magnum is a .30 caliber rifle cartridge created by Roy Weatherby in 1944 and produced by Weatherby. It has become the most popular of all the Weatherby cartridges.[1]
Background[]
Roy Weatherby already had experience with other custom cartridges such as his own .270 Weatherby Magnum when he created the .300 Weatherby. Like most of his other magnum cartridges, this is based on a blown-out .300 H&H Magnum case, using the signature Weatherby double-radius shoulder.
Performance[]
Historically, Weatherby claimed that this is the most powerful .30 caliber magnum rifle commercially available, but the recently introduced .300 RUM and Weatherby's own .30/378 Magnum are now more powerful. Of course there are quite a few very large .30 caliber wildcat cartridges.
One must note however when comparing the .300 RUM and the .300 Weatherby Magnum the difference in factory loadings. Performance data is often listed on the side of the ammunition box for those who wish to do an in-store comparison. On average, Weatherby factory ammo is loaded to higher chamber pressures than Remington or Winchester magnum rounds. The Remington round can be handloaded to equal or even surpass the .300 Weatherby in power.
The .300 Wby is in common use by big-game hunters all over the world.[2]
See also[]
- List of rifle cartridges
- 7 mm caliber other cartridges in the same caliber range
References[]
- ↑ 1.0 1.1 .300 Weatherby Magnum page at Weatherby
- ↑ .300 Weatherby by Chuck Hawks (subscription required)(subscription required)
- .300 Weatherby Magnum at Accurate Powder Cartridge dimensions.
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