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Four bore or 4 bore is a black powder caliber of the 19th century, used for the hunting of large and potentially dangerous game animals. The specifications place this caliber between the larger 2 bore and the smaller 6 bore rifles. This caliber was the quintessential elephant gun caliber of the black powder safari rifles. The caliber was also used for…
History, History 1750–1880 & Specifications
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| Subject | Predicate | Object | Confidence | Src |
|---|---|---|---|---|
| 4 bore | Base diameter | 1.1 inch (28 mm) | 1.00 | infobox |
| 4 bore | Bullet diameter | 1 inch (25.4 mm) | 1.00 | infobox |
| 4 bore | Bullet mass/type | Bullet mass/type Velocity Energy 1,882 gr (122 g) Black Powder 1,300 ft/s (400 m/s) 9,321 ft⋅lbf (12,638 J) 2,000 gr (130 g) Magnum 2,624 ft/s (800 m/s) 30,671 ft⋅lbf (41,584 J) | 1.00 | infobox |
| 4 bore | Case length | 4 inches (101.5mm) | 1.00 | infobox |
| 4 bore | Case type | Rimmed, straight | 1.00 | infobox |
| 4 bore | Maximum pressure | 36,259 psi (2,500 bar) | 1.00 | infobox |
| 4 bore | Neck diameter | 1.07 inch (27.15 mm) | 1.00 | infobox |
| 4 bore | Overall length | 4.7 inches (119.3 mm ) | 1.00 | infobox |
| 4 bore | Place of origin | British Empire | 1.00 | infobox |
| 4 bore | Rim diameter | 1.23 inch (31.3 mm) | 1.00 | infobox |
| 4 bore | Rim thickness | .06 inch (1.5 mm) | 1.00 | infobox |
| 4 bore | Type | Rifle or Smoothbore, Heavy Game | 1.00 | infobox |
| 4 bore | is a | black powder caliber of the 19th century | 0.90 | text |
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