The design of the Type 88 sniper rifle

The better shooting accuracy of the Type 88 is also related to its structural design. In particular, the bolt adopts three locking protrusions. When firing, the direction of the resultant force of the bolt and receiver is basically consistent with the axis of the barrel. Easy for shooters to control. At the same time, the gun adopts a hammer-rotating mechanism that fires reliably and quickly. The center of rotation is close to the center of mass of the gun, and the impact point of the hammer is on the center line of the gun bore, which enhances shooting stability.

Sniper rifles with sophisticated optical/mechanical dual sighting devices place special emphasis on the accuracy of shooting, so the Type 88 is designed with two sets of sighting devices based on optical sights and supplemented by mechanical sights.

The Type 88's mechanical sights are foldable. After folding, it does not affect the use of the optical sight. After removing the sight, you can aim and shoot by raising the quasi-constellation and ruler base; the mechanical sights are The rectangular target hole is less likely to cause left and right aiming errors, and it is easier to determine the center point than the circular target hole, which is closer to actual combat requirements.

Lightweight bipod is detachable, foldable, and has adjustable fire wire height. This bipod is made of high-strength aluminum alloy and has been hard-anodized. It has the advantages of light weight, corrosion resistance, and wear resistance. However, the disadvantage is that it is insufficient in strength and may cause breakage if used improperly. In fact, according to public reports in magazines, when the Type 88 sniper rifle was first equipped with troops, because there was no special sniper training tutorial in the army, many shooters used the bipod of the sniper rifle in the form of a light machine gun, often relying on the ground. When shooting, they are accustomed to digging the tripod into the ground vigorously. As a result, many bipods break (but in fact, the strength of such bipods is not high), so much so that experts have to write articles in magazines to explain the bipods. How to use the rack.

The installation of the bipod on the barrel has been questioned in online discussions, because the support point on the barrel will interfere with the vibration of the barrel, resulting in poor dispersion accuracy. , so most modern sniper rifles use floating barrels, and bipods are generally not installed on the barrel. However, it is said that since the design accuracy of the Type 88 sniper rifle itself is not high, and it is equipped with ordinary machine gun bullets, whether the barrel floats or not has little impact. So, what is the accuracy of the Type 88 sniper rifle? According to the news on the Internet, at a distance of 100 meters, the total dispersion radius of 10 rounds is close to the diameter of 10 rings of an ordinary chest ring target.

When arranging the size and position of the human-machine operation of the Type 88 sniper rifle, the relevant parameters are determined based on the adult human body size and body standards. Priority is given to determining the position of the aiming device.

The Type 88 sniper rifle uses a three-lock protruding bolt with a fixed firing pin. The appearance of the bolt looks like the bolt of the SVD/85 sniper rifle. In fact, the entire QBU88 sniper rifle system is basically It is a reduced, bullpup, and improved version of the Type 85 sniper rifle. The firing mechanism of the Type 88 sniper rifle consists of a trigger, trigger lever, sear, single-shot sear, non-position safety, firing mechanism bracket and shaft, etc. It is a single-shot firing mechanism.

The three major parts that make up the overall shape of the 5.8mm sniper rifle, including the butt, upper cover, and lower protector, are all injection molded from super-tough reinforced nylon 66. The basic color is black and the overall appearance is uniform. It has a fine textured matt surface, which does not emit light but has a good feel. It has a high heat deformation temperature (250~260℃) and is rich in sources.

The tripod is made of high-strength aluminum alloy and has been hard anodized, which has the advantages of light weight, corrosion resistance and wear resistance. Ferrous metal parts adopt chemical composite film-forming phosphating technology, which has a thin film layer, fine grains, and strong bonding force. Its corrosion resistance is more than 10 times higher than that of oxidation. The inner bore of the barrel adopts reversing chromium plating technology to make the chromium layer crystallize evenly and improve the performance of the barrel. The barrel blank is quenched and tempered to improve the processing performance and ensure the quality of the bore processing when the aspect ratio is particularly large.

For complex key parts such as bolt components, receivers, scope holders, etc., parts that require high dimensional accuracy and strict geometric and positional tolerances are processed using machining centers. The target holes of the table scale are processed by laser or CNC wire cutting machine. For the rest, stamping, forging, injection molding, welding and other processes with less or no chips should be used as much as possible. The Type 88 sniper rifle is much shorter than the foreign 7.62MM sniper rifle and has excellent portability.

Scope markings: There are 7 "∧" shaped arrows in the vertical direction, and the top of the arrows is the aiming point. There is one aiming point for 100m and 200m, and there is a separate aiming point every 100m for the shooting distance of 300~800m. The data on the right side of the aiming reticle is the shooting distance.