National Practical Shooting Association

FAQ.

Poligonalinės, heksagonalinės oktogonalinės graižtvos

There is a sizeable firearms, whose purpose is to graižtvos that it is screwed onto the kulką during sukdamasi and nesivartytų function as a gyroscope, and spike is always directed towards the direction of flight of the trajectory.
Most of the world used the usual graižtvos with stačiakampėmis edges, into which the shot tube travelling as a Rails or įsipjovus kreipiančiosiomis.
Some of the pipes are produced with poligonalinėmis graižtvomis weapons, which do not have corners, simply pipe is unevenly rounded. Other manufacturers instead of circular pipe graižtvas pusapvales produce, which has virtually the same effect as the neapvalus tube. Poligonalinių graižtvų the main advantages are the speed of the longevity of the pipe because the lower, larger projectiles, very easily by the friction of one brushed one's vamzdiis and nepriauga metal or combustion products, because there is no where to užsilaikyti.
Poligonalinių graižtvų heksagonalinės and Oktagonalinės are synonyms. This is one and the same, only notes that u r a Hexa-, and 6-8 graižtvos oka graižtvos.
Poligonalinės pistoletuose graižtvos is all Glock, Tanfoglio Gold Custom model, Vector, snaiperiniame šautuve CP1 at, HK PSG1 and some other models.
Here you can compare what's the Visual difference between the normal graižtvų (left) and poligonalinių graižtvų (right).
graiztvos.gif

What is MOA?

Minute of arc. This is the mathematical term, very convenient to use balistikoje. In examining the practical value of the gun, which is defined as 1 MOA accuracy, at a distance of 100 yards in it group hits is 1 inch. at a distance of 200 yards in it-2 coliuose and so on.

Single Stack

This is such a rivet type, when the ordnance magazine. to bin the consists of one row of cartridges for one of the levels on the other, for example. how ' e, Sig Sauer Makarov 232, Colt, etc.

What is SA, DA DAO?

SA (Singe Action) system of gun such that cannot be spragsėti. Gaiduką each time you establish back šliauždama a lock or is capable of starting with the by hand. SA is used in order to be as short as possible trigger nuspaudimas and nuleistukas easier.
SA gun cartridge, nešovė It is not already in the Middle-click a second time by the same Chamber, hoping the second time the venom capsule. You cannot train and spragsėjimu, as per spragtelėjimui should be atlaužti gaiduką or the interrupt latch.

DA (Double Action) is most of the classic structure of the pistol for the Office and self-defence. It's the same Makarov, CZ-75, Sig Sauer 226, 232 of them and so on. the advantage of those that can train spragsėdamas and if you did not work capsule may be tempted to spragtelti for the second time, in the hope that maybe the venom. However, such weapons long trigger nuspaudimas compared to the SA.

SA/DA (Single Action/Double Action) is the same as the FREQUENCY of the first shot can be done by means of a functioning, it is the pressing rolls Ruff and others šūviai carried out the operation because the SA vieneriopu gaiduką užvestoje atlenkia and records the position of the lock.

DAO (Double Action Only) occurs very rarely. This is a classic revolverio system. DAO in the Ruff never active. He's just nesifiksuoja užvestoje. Therefore, for each shot by pressing the nuleistuką moves over the Ruff. DAO used in some parts of America, the police, when revolverius changed to pistols, to avoid accidental šūvių.

" Pre Set ". Glock, Walther P99, and other begaidukiniai pistols are in a separate category called " Pre Set ". Glock Safe Action, this call is a call for Quick Action Walther, and other commercial names. This the system is very close to DA (Double Action) system. Here gaiduko is not present, its the function makes the colouring agent įveržtas with spyruokle (otherwise known as the needle). The hammer Pre Set system is always a semi active or semi- is tight. By pressing the nuleistuką hammer is increasingly įtempiamas and after that the the critical limit of separation from the trigger mechanism and the hammer strikes in the capsule. Spynai persitaisius the hammer again užsikabina for again by pressing the trigger mechanism and įtempinėjamas and nuleistuką so Again, that the hammer after each shot remains in semi given the situation, that would be a shorter trigger nuspaudimas, because if the It should be įtempinėti from scratch it or nuleistukas is very long or very serious.
Unfortunately with this type of mechanism is also not spragsėti, because after the first spragtelėjimo the hammer stays nulinėje position Nowhere in the neužsikabinęs, and užsikabina just interrupted the latch.
The nuleisdimo system is designed to protect the šaulį from accidental gunshots, in addition to the stresinio as a užtaisytas is not even theoretically fire because of a lack of impact of tension. Sports such nuleistukas not very appropriate because sunkokas trigger nuspaudimas, but on the other hand has the advantage that (Production divizione) for the first and the other šūvius are always the same trigger depression strength, because the DA pistoletuose Production divizione užtaisius gaiduką neužtaisytą a weapon must be built into the situation.