| .33 Winchester Center Fire |
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| Type | Rifle |
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| Place of origin | United States |
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|
| Designed | 1902 |
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| Produced | 1902–1940 |
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|
| Parent case | .45-70 |
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| Case type | Rimmed, bottleneck |
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| Bullet diameter | .338 in (8.6 mm) |
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| Neck diameter | .365 in (9.3 mm) |
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| Shoulder diameter | .443 in (11.3 mm) |
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| Base diameter | .508 in (12.9 mm) |
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| Rim diameter | .610 in (15.5 mm) |
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| Case length | 2.11 in (54 mm) |
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| Overall length | 2.80 in (71 mm) |
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| Primer type | large rifle |
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|
|
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| Bullet mass/type |
Velocity |
Energy |
| 200 gr (13 g) (factory load) |
2,200 ft/s (670 m/s) |
2,150 ft⋅lbf (2,920 J) |
| 200 gr (13 g) (maximum load) |
2,420 ft/s (740 m/s) |
2,608 ft⋅lbf (3,536 J) |
|
| Source(s): Barnes & Amber 1972 |
The .33 Winchester Center Fire / 8.6x54mmR (colloquially .33 Winchester, .33 WCF, or .33 Win) is a centerfire rifle cartridge designed and produced from 1902 to 1940 by Winchester Repeating Arms Company for their Model 1886 lever-action rifle.
