Wouldn’t have thought there’d be too much chance of a cook off in this style of weapon. Finally I’ve found something that helped me. Like other Anti-tank Rifles of the time, the Type 97 would not be very good at taking out frontline combat tanks like a Sherman, but it could take out the plethora of lesser combat vehicles like Amtracs, landing craft, artillery tractors, trucks, jeeps, etc. During the Second Sino-Japanese War and World War Two, the Empire of Japan, in the guise of the Imperial Japanese Army, saw a need to develop a weapon to be used primarily against the lightly-armored equipment being fielded by the Allies in the Pacific Theater. And all that mass moving forward when you pull the trigger couldn’t do your aim much good. 37mm anti-tank guns were found to be useless against allied medium tanks and due to this AP ammunition was developed for all gun types. Its short but active career saw it used in its intended role as well as being used as an improvised AA gun. The first anti-tank rifle was the british Godsal. A possible explanation for the discrepancy in AP performance was that Japanese 20mm AP projectiles were available in different levels of steel hardness (presumably for manufacturing/cost reasons). When fully assembled with its armor shield and carrying handles, the gun weighed in at an astonishing 150 pounds.  Unlike other heavy designs that came equipped with wheeled mounts or skis, the Type 97 was carried by its crew much like an injured man on a stretcher.  This heft, coupled with the guns accessories and ammunition would have certainly place a large burden on the nine man crew during cross country operations.  The barrel, which could be removed for long distance transport, was locked to the receiver using an interrupted thread mechanism. But what do you expect from a shoulder-fired 2500 gr. Good points, Chris, especially about the Japanese High Command’s assumptions concerning a non-existent road over the Owen Stanley Range. Entries are listed below in alphanumeric order (1-to-Z). While there are plenty of open bolt guns in military service, most of them are fully automatic, unlike the Type 97. Before I forget, Osmar White stated quite succinctly that jungle toughness was not so much a matter of muscle toughness ( how physically fit and well-trained you were ), but instead primarily a condition of mind paired with a bloodstream full of antibodies. Either way, he described the recoil as being relatively mild, more a “series of powerful shoves than punches”. I trimmed the barrel off an Airfix MG just ahead of the receiver and added a new longer barrel of stiff steel wire and a bipod from florists wire. Unfortunately, one would require at least five of these anti-tank guns to make the above strategy effective. Very few examples of the gun survive today in either private hands or museums, almost certainly due to its bulk and great weight. Unlike its prototypes, it had a unique disadvantage. Japanese Type 97 20mm Anti-tank Rifle May 1, 2013 Ian McCollum Anti-Tank Rifles 44 Today’s article comes to us from, Christopher Bailey, who is particularly interested in finding information and photos of these kinds of antitank weapons. In the middle part of the 1930’s, it became apparent to nearly all observers that another war was on the horizon. Weight, less shield and handles: 115 lb (52.2 kg) British Antitank Guns. Flag images indicative of country of origin and not necessarily the primary operator. This was a common WWI-WWII era artillery muzzle flash suppression technology… See the remarks on prior art in this patent. Since a rear-mounted mono-pod is used and due to the fact that the thing weighs 150 pounds, I think the only time the gun is going to move is under recoil from the fired round. Please look at for further pertinent comments. Tamiya 35075 WWII Japanese Type 97 Tank 1/35 Scale Plastic Model Kit. From this prewar “arms race” came a number of competing designs, amongst them the Polish Wz-35, the German PzB 38, the British Boys Rifle as well as the Solothurn series of commercial guns.  These rifles, all using different mechanisms, show off a variety of design compromises.  Some used a small high-velocity bullet fired out of a light weight gun, while others used a large projectile fired out of an equally heavy weapon.  The middle ground (that of a medium sized round) was also employed, though it was largely overlooked by most designers  Not  to be left behind by these European developments, the Empire of Japan began its own program in 1935, culminating in 1937 with the adoption of the Type 97 Anti-tank rifle. Enjoy what you read on Forgotten Weapons? More likely, this was Tin or a Tin/Lead alloy foil, added to reduce MUZZLE FLASH. It may sound bit couterproductive vis-a-vis with what you are saying, but I cannot find other interpretation for that. Simultaneous to this internal action, the whole barreled action would cycle both forward and to the rear, its movement being slowed by the recuperator system mounted in the lower receiver. While the designers may have gone much too far in that direction, thus making it excessively unwieldy in the field, at least they tried to err on the side of reliability and mechanical integrity. I shudder to imagine having to cock that brute! After ensuring that both dust covers were open, a loaded magazine would then be locked into place on the top of the gun. Anti-tank rifle Lahti L-39 It was on display at the Auckland Memorial War Museum for many years. Please consider, Type 97 Anti-Tank Rifle | WTW | Breach Bang Clear. Tank without track…50 ton door-stop. As the projectile traveled down the barrel at 2,640 feet per second, some of the propellant gas was diverted into a regulated gas tube assembly located underneath the barrel. These seem to be either mechanical malfunctions or simply accounts of the Type 98, a fully automatic machine cannon derived from the Type 97. Mechanism: Gas-operated open-bolt semiautomatic To cock the weapon, the charging handle located on the left side would have to be pulled fully to the rear, with a loud “click” letting the shooter know that the sear had engaged the bolt carrier. Muzzle velocity: 2,640 feet per second (866 m/s) As Christopher Bailey states, they’re probably a bit to big and heavy for most museums and most collectors. 九七式自動砲: The Japanese Type 97 20mm Anti-tank Rifle. The outcome, however, is unambiguous: While the Japanese killed or wounded more than 1,500 Soviet troops, Soviet anti-tank weapons demolished half of the Japanese regiment’s tanks, massacring Ikeda and his men—and the story of Imperial Japan’s armored force came to an unceremonious end. In the middle part of the 1930’s, it became apparent to nearly all observers that another war was on the horizon. Commentdocument.getElementById("comment").setAttribute( "id", "a02b96ca08514fcec1a86e62e901a251" );document.getElementById("bbd123b345").setAttribute( "id", "comment" ); Save my name, email, and website in this browser for the next time I comment. This, coupled with the forward movement of the barreled action would’ve reduced the felt recoil a fair amount. Development of a replacement began in July 1933 and was completed a year later. UMmt 1/72 655-006 WWII Soviet 37mm/67 (1.5") Automatic Anti-Aircraft Gun 70-K. So it fires from an open bolt? that’s why you don’t rank high in google, but there is a However, its short bore, low muzzle velocity, short range and slow reloading time gave it only a limited capacity against enemy armor. In fact, two versions: the Ho-1 (for flexible mounting) and the Ho-3 (fixed). This heft, coupled with the guns accessories and ammunition would have certainly place a large burden on the nine man crew during cross country operations. The other members of the semi auto and selective fire light cannon anti tank “rifles” also propelled various heavy bits forward prior to firing, in order to spread the recoil impulse ove a longer period, and to minimise the shock when the recoiling parts hit the buffer(and the firer) at the end of their rearward travel. Please consider, Book Review: The Siamese Mauser (Banzai Special Project #1), Book Review: Collector’s Guide to Imperial Japanese Handguns 1893-1945, http://forums.gunboards.com/showthread.php?314689-Article-on-Type-97-20mm-Anti-tank-Rifle, Just wanted to share this with my shooting Brothers here! Chambered for the powerful 20x124mm cartridge, the Type 97 is a magazine fed, gas-operated weapon that fires from an open bolt. 九七式自動砲: The Japanese Type 97 20mm Anti-tank Rifle. Traversing the gun was actually somewhat difficult, requiring the gunner to lift the rear of the heavy gun with his shoulder before shifting it left or right. Barrel length: 41.875 in (1064 mm) Caliber: 20 x 124mm Initial testing indicated that a trained crew could fire up to 30 rounds per minute; however, Army planners felt … The system utilized a custom mammoth 20x124 Type 97 ammunition round which was a vast departure from the common 14mm types appearing with British, German and Soviet forces throughout World War 2. Even if the brute couldn’t be relied upon to penetrate a tank’s armour, well aimed shots could break a track pin, or damage a sprocket, then with the tank either stationary or slewing in circles, further shots could stake the turret from rotating and stake the gun from elevating. I really appreciate learning about these monsters, and the big end of what one man can aim and fire, and have to admit that I don’t have much background knowledge of the cannon sized anti tank rifles. Two different versions, for flexible and fixed mountings, were officially known as the Ho-1 and Ho-3, but apparently these initially kept the Type 97 designation. Type 1 47 mm Anti-Tank Gun; Medium anti-aircraft gun. Unlike the officers of the Imperial Japanese Navy, most of the army officers hadn’t traveled beyond Korea, Manchuria or China. The controlling metaphor for the Japanese approach to the conflict was the hydrogen filled observation balloon which the Japanese employed… with predictable results. Why, of course – since the weapon’s name actually translates to “Type 97 Automatic Cannon” (九七式自動砲), I’d say that’s an apt description. Its breech is semi-auto and although very similar to the PAK is not as complicated. And understand perfectly what it entails 2020 Forgotten Weapons.Site developed by Cardinal Acres Web Development fighters,,... 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