Autocannons are automatic guns with calibers of 20 millimeters (0.79 in) to 60 millimeters (2.4 in). There are many types, including chain guns, gast guns, revolver cannons, and rotary cannons.They are being used as military aircraft main guns, naval guns, anti-aircraft weapons, infantry fighting vehicle main guns and are occasionally found on …

The XM913 is an experimental American chain gun produced at Picatinny Arsenal. [1] The cannon is a larger and more modern version of the 35 mm Bushmaster III chain gun, which itself is a larger version of the 25 mm M242 Bushmaster cannon.Although its shells, 50 x 228 mm, are twice the diameter of the 25×137mm cartridge of the M242, the 50mm cannon is not much longer than the smaller weapon. [2]

The Bordkanone 3,7 (BK 3,7) ("on-board cannon 3.7") was a German 3.7 cm (1.46 in) anti-tank/bomber autocannon of World War II and based on the earlier 3.7 cm (1.46 in) 3.7 cm Flak 18 made by Rheinmetall.. It was mounted on Luftwaffe aircraft such as the Junkers Ju 87 G-1 and G-2; Henschel Hs 129B-2/R3; Messerschmitt Bf 110G-2/R1-3; Junkers Ju 88P-2 or P-3 and others.

2025年1月7日 · Overall there’s not much need for another 7mm cannon but the use of a steel case that can be reloaded is interesting. For hunters with long-action magnums like 7RM, probably no reason to go to 7PRC or this new 7mm. Think the main point of these new hot-rodded cartridges is to appeal to newer or soon-to-be hunters and long range shooters that ...

2017年12月4日 · The first truly potent magnum sevens to be created were the 7x61 Sharp and Hart and the 7mm Weatherby magnum, both U.S inventions, introduced during the early 1950's. While the cartridge designs were somewhat similar to the .275 H&H, albeit blown out to minimize body taper, the major breakthrough was the adoption of surplus 20mm cannon powder.

In Denmark, the Madsen company produced cannons in both 20 and 23 mm calibre. In Russia, the ShVAK cannon was produced, first in 12.7 mm (.50 inch) calibre and then in 20mm with shell weights between 96 and 99 grams. At the same time the use of incendiary ammunition for machine guns increased, either as purely incendiary or with a tracer effect

2025年1月7日 · 7mm Backcountry . Federal calls the new material Peak Alloy, which is a proprietary grade of steel that is soft enough to work as a cartridge case, tough enough to withstand over 80K PSI of pressure, and tensile enough to spring back like brass for easy extraction. Furthermore, it’s drawn into a conventional one-piece case, bringing about a ...

2024年9月11日 · 2. 7mm PRC Hornady’s line of Precision Rifle Cartridges (PRC) have really turned some heads, and though the 6.5 PRC and 300 PRC are solid designs, I feel the 7mm PRC to be the best balanced of the lot. Based on the beltless .375 Ruger case, the 7mm PRC shares the same cartridge overall length as the .30-06 Springfield and 7mm Remington Magnum ...

20 mm caliber is a specific size of popular autocannon ammunition. The dividing line between smaller-caliber weapons, commonly called "guns", from larger-caliber "cannons" (e.g. machine gun vs. autocannon), is conventionally taken to be the 20 mm round, the smallest caliber of autocannon.All 20 mm cartridges have an outside projectile diameter and barrel bore diameter of approximately 0.787 ...

Announcing Federal 7mm Backcountry. For the last few years, Federal has been working on a new round, trying to obtain high velocity levels with heavier bullets in shorter barrels. With the 7mm Backcountry, Federal succeeded. In fact, Federal says three numbers — 20, 170 and 3,000 — define this long-action, non-magnum hunting round.