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130-grain (8.4 g) – soft point 150-grain (9.7 g) – round nose The next important change in the history of the rifle bullet occurred in 1882, when Lieutenant Colonel Eduard Rubin , director of the Swiss Army Laboratory at Thun, invented the copper-jacketed bullet — an elongated bullet with a lead core in a copper jacket.
3–20 [2] Zinc–carbon: Carbon–zinc Zinc: NH 4 Cl Manganese (IV) oxide: No 1898 [3] 0.75–0.9 [3] 1.5 [3] 0.13 (36) [3] 0.33 (92) [3] 10–27 [3] 2.49 (402) [3] 50–60 [3] 0.32 [3] 3–5 [4] Zinc–air: PR KOH Oxygen: No 1932 [5] 0.9 [5] 1.45–1.65 [5] 1.59 (442) [5] 6.02 (1,673) [5] 100 [5] 2.18 (460) [5] 60–70 [5] 0.17 [5] 3 [5 ...
The .38 Special held a minimum of 21 grains of black powder, 3 grains more than the then-current .38 Long Colt, and muzzle velocity (with a 158 grain bullet) was 100–150 feet per second greater. During the late 1920s, in response to demands for a more effective law-enforcement version of the cartridge, a new standard-velocity loading for the ...
Visually, it resembles a .38 S&W but the case dimensions are slightly different. The .38 Short Colt case is the parent to the .38 Long Colt and .38 Special.. Remington is one of the few producers of this cartridge today with a 125 gr LRN bullet.
The round was derived from the 14.5×114mm round by necking it out to 23 mm. [1] The original rounds used a lower power charge of 33 g of sw 4/7 powder and achieved 690 m/s at a maximum pressure of 294.3 MPa. In 1954 an improved ammunition was introduced, featuring better projectile design and ballistic properties.
The older .38 ACP cartridge propels a 130-grain (8.4 g) bullet at 1,050 ft/s (320.0 m/s), whereas the .38 Super pushes the same bullet at 1,280 ft/s (390.1 m/s). [3] The .38 Super has gained distinction as the caliber of choice for many top practical shooting competitors; it remains one of the dominant calibers in IPSC competition.
On 8 August 2013, Australia requested the sale of 4,002 M1156 Precision Guidance Kits with training and associated equipment for $54 million, [15] something unusual for an item still in low-rate initial production. [16] PGKs were ordered for Australia and Canada in February 2015. [17]
Gas checks are most commonly found in the form of a thin cup or disc made of a ductile metal. Copper, zinc, aluminum, and alloys such as brass have been used. A bullet designed to accept a gas check has a rebated base shank which permits attachment of the check without altering the maximum diameter of the bullet.