The M60 revolver introduced in this paper can use both 0.357-inch Ma Genan and 0.38-inch special bullets, which is one of its successful improved products.
origin
Special detective revolver
As early as 1927, colt patented weapon manufacturing company developed and produced the famous 0.38-inch colt special detective revolver. The gun uses 0.38 inch (9×29mmR) special revolver bullets, and the gun bore can hold 6 bullets. For the next nine years, the gun dominated the revolver market.
1936, Smith? In order to compete with Colt for the market, Wei Sen also introduced the Smith-Wei Sen special detective revolver, but it didn't succeed.
The reason is that the Smith-Wei Sen Special Detective revolver used the round grip bottom of the early police pistol. Although this grip works well on other guns, it is big and heavy compared with Colt Special Detective revolver.
Second, the gun uses a 0.38-inch Smith-Wei Sen revolver with a capacity of only 5 rounds. Although the sales volume is average, the 0.38-inch Smith-Wei Sen special detective revolver is still an excellent pistol.
second generation
The poor sales of Smith-Wei Sen special detective revolvers made the company boss dissatisfied. 1949, he asked the design department of the company to develop a new type of revolver based on the existing "I" wheel seat of revolver, and requested to increase the wheel seat, with a capacity of 5 rounds and a caliber of 0.38 inches. A year later, a new pistol was born, Smith? Wei Sen Company named this enlarged runner seat as "J" runner seat.
Different from other revolvers in the company, the hammer spring of the revolver seat is a spiral spring, while other revolvers use a sheet hammer spring. Compared with Colt revolver, the new revolver has only five bullets, but it is smaller and lighter than Colt revolver, and it is easy to hide, comfortable to handle and convenient to carry.
Smith-Wei Sen Company exhibited this new revolver for the first time at the exhibition held by the International Police Association in 1950. Perhaps in order to develop the police market, Smith-Wei Sen Company called all police officers to name this new gun. As expected, this new gun was named "Special VIP Revolver", which has been used ever since.
The prototype of the special VIP revolver introduces two designs: the barrel length is 5 1mm and the bottom is a round grip. In order to cater to the public's taste, a model with a barrel length of 76mm was immediately introduced. Due to the good market response, in 1952, Smith-Wei Sen Company subsequently introduced an improved grip with a square bottom to suit people with big hands.
In the same year, aluminum alloy light special VIP revolver also appeared, but it was impractical to produce aluminum alloy revolver at that time, so in 1954, the light special VIP revolver was discontinued.
In 1952, Smith-Wei Sen also introduced another improved revolver for special VIPs-centennial commemorative pistol. The gun is made of all steel, and the M 1887 pistol has a hidden hammer and grip safety.
In 1955, a more compact modified gun-"bodyguard" revolver pistol appeared. The side of the gun body is very smooth, and a hidden hammer is used, which is convenient for drawing the gun at any time. Initially, Smith-Wei Sen Company only provided light bodyguard revolvers, and it was not until 1959 that all-steel bodyguard revolvers appeared.
M60 revolver appears.
From 65438 to 0957, Smith-Wei Sen Company began to standardize its product names in digital form. The prototype VIP revolver is represented by "M36": the light VIP revolver is "M37"; Centennial commemorative type and light centenary commemorative type are represented by "M40" and "M42" respectively; The light bodyguard revolver is M38 all-steel bodyguard revolver is M49.
1965, the first stainless steel revolver of Smith-Wei Sen Company was born and named as "M60". In today's view, stainless steel is a very common material, but in that year, its appearance was refreshing.
The surface of the first batch of M60 was too bright and dazzling, and the law enforcement departments at that time always resisted the use. In the second year, M60 with frosted surface was produced. The early M60 was 0.38-inch caliber and fired 0.38-inch special bombs.
Today, the M60 is still an excellent revolver. During the Vietnam War, American soldiers who participated in the war especially cherished M60 because of its excellent corrosion resistance. The M60 is also widely recognized by the police.
Smith-Wei Sen recently introduced a new M60 revolver. Different from previous models, this M60 can use either 0.357-inch Ma Genan bullets or 0.38-inch special bullets. The barrel length of the gun is 127mm, and it is equipped with an adjustable door and a wooden grip. Obviously, the new M60 is designed for those who are often outdoors, because it is very easy to put into a backpack, leather case or shoulder cover.
The gun is small in size, light in weight, easy to carry, difficult to find and easy to pull out. When using 0.38-inch special bullets, you can play some small shooting games; When using a 0.357-inch Ma Genan bullet, the gunman can even deal with black bears or robbers. Although it is safe to use 0.357 inch Ma Genan bullet, it should be used as little as possible, otherwise it will affect the life of the gun.
The structural design and surface treatment of the new M60 are quite perfect. The surfaces of all joints, such as the barrel and body, the shell stripper and the side plates, are well treated. Those difficult parts, such as the trigger retainer, the outline of the gun body and the lug under the barrel, are also done quite well. These details are exquisite, and the whole gun looks quite perfect.
The capacity of the new M60 runner room is also 5 rounds. When shooting, the runner rotates counterclockwise from the back and the action is stable. The outstanding advantage of the wheel seat is that the locking groove is located between the two chambers, and the shell-withdrawing rod is protected by the lug at the lower end of the cylinder, so the front and rear positioning of the wheel is very reliable.
When the gun is in the single-action mode, the trigger force is 17.8N, and when it is in the double-action mode, the trigger force is 53.3N In recent years, on the revolver produced by Smith-Wei Sen Company, all the striking needles are set on the gun body, while the previous ones are set on the hammer.
Among all revolvers equipped with "J" wheel seat, the new M60 is equipped with an enlarged trigger holder, which is convenient for people with big hands or wearing gloves in winter.
The photo door of the new M60 is square notch type, which can adjust the height and wind deflection. The sight is tilted, and there is a concave red dot on the slope. Because the excessively smooth barrel surface will reflect light when aiming at shooting, the upper end face of the barrel is all designed as sawtooth stripes.
The grip of the gun is small, and the front of the grip is engraved with finger grooves, which is smooth in shape and very conducive to drawing the gun in an emergency. The grip is made of wood, with a very smooth surface and a layer of moisture-proof paint.
process technology
In order to improve the production efficiency, Smith-Wei Sen Company divided the barrel of the new M60 into two parts for manufacturing and processing. One part is the barrel with rifling, and the other part is the barrel bushing with sight. When assembling, first put the matching surface of barrel sleeve on the matching surface of gun body, and then insert the barrel into the barrel bushing in the direction opposite to the rifling with a wrench. After assembling, make sure that the position of the sight is correct.
This processing method is different from the old connection method. The old-fashioned connection method is to screw the barrel on the gun body first, and then connect the sight with the barrel through interference fit.
The handle of the gun body is quite comfortable, just in proportion to the rest of the gun body. For safety, there is a locking device just above the wheel release lever. Insert the key into the locking device and turn it clockwise to use the gun.
When hunting or shooting in the wild, M60 is a good choice. Shooter can use 0.38 inch special bullet and 0.357 Ma Genan bullet at the same time.
Ignition test
At 9m, several bullets were used for shooting test. When Remington 7.13JHP bomb is used, the initial velocity is 325m/s and the maximum scattering diameter is 5lmm；; Remington 8. 10g copper armored bullet has an initial velocity of 3 1 1m/s, and the maximum dispersion diameter is 64 mm. The dispersion diameter of Honetti armor-piercing bullet is the same as that of Remington 8. 10g copper armored bullet, but the initial velocity is 227 m/s. When using heavy ammunition, Norma 6544. Remington 10.24g semi-perforated projectile has an initial velocity of 252m/s and a maximum dispersion diameter of 76 mm..
When M60 uses 0.38 inch special bullet, the overall feeling is better. S When using a 0.357-inch Ma Genan bullet, the shooter must hold the handle tightly, otherwise his thumb will be easily injured.
Generally speaking, M60 is a very small, light and comfortable revolver, but it is not really suitable for 0.357 inch Ma Genan bullet.