The semi-automatic rifle is widespread among our hunters of ungulates; they appreciate the quick reset cycle and also the good availability of shots. It’s slowly replacing the smooth-bore weapons for wild boar.
Apart from the higher accuracy, in shooting the rifled barrel weapon has many advantages against the smooth bore.
The high speed of the rifled barrel weapon projectile into the prey produces serious injuries that prevent them from escaping. The semi-automatic rifle has the advantage of a rapid repetition of the shot, a very useful characteristic during the ungulates hunting battue, due to the short time in which the prey remains visible among the vegetation. The semi-automatic rifles are also called “autoload”, automatic loading, with the exception of the automatic repetition of the shot.
Almost all of these rifles have a mechanism for removal of gas. Some of them look like military automatic rifles (often they are the derivation), where, however, the number of shots was reduced and the burst eliminated. Only the semi-automatic rifles ga. 22 with rimfire are equipped with a closure to ground due to the low power gauge.
These weapons have a great difficulty to take in very powerful gauges, both for the excessive length of the cartridge case, and for necessity of absorbing and amortizing the violent recoil. The mechanical structure and the mechanism appear to be almost identical to that of semi-automatic. The cartridge tank is generally formed from a magazine of a detachable type, giving a fast loading using a simple spare magazine.
The semi-automatic rifles have a removable magazine supply, placed on tilting or removable support. The charger can have up to 4 cartridges in standard gauges, or up to 3 in magnum gauges. The breech has moveable head with crampons; they get a stable connection with the breech of the barrel. The mechanical parts of those rifles are made of a good steel, in chrome-nickel ones which are located at the points of greatest wear or exposed to very bad gas. They are well-groomed in details, built with quality materials, safe and precise during the operation.
The operation generally does not present problems and the accuracy of shooting in battue is good.
Among the rifles produced, there is one that is special: it is the Heckler & Hoch that differs from the others because its mechanism exploits the recoil energy, through a delayed opening of the breech, braked by metal cylinders sliding on inclined planes. It has a rib rifling of the barrel obtained by a polygonal puncture of the tube, its mechanics are very accurate, the materials and the operation are good. Only the recoil is often more sensitive than that of the gas rifle.