A breechblock (or breech block) is the part of the firearm action that closes the breech of a breech loading weapon (whether small arms or artillery) before or at the moment of firing. It seals the breech and contains the pressure generated by the ignited propellant .

This Stevens manufactured breech block is for the Favorite model 1915 single shot falling block rimfire rifle in 22 LR caliber and is in very good condition exhibiting a grayish brown patina with light wear.

The Welin breech block was a revolutionary stepped, interrupted thread design for locking artillery breeches, invented by Axel Welin in 1889 or 1890. Shortly after, Vickers acquired the British patents.

The breech block is the principal part of the breech mechanism. It is essentially a large heavy piece of steel that covers or seals the breech end of the tube and houses portions of the firing mechanism.

2024年2月18日 · A breech on a firearm refers to the back part of the gun barrel, where the cartridge is loaded and unloaded. It is the opening through which the bullet or cartridge is inserted into the chamber of the firearm before firing.

A breechblock (or breech block) is the part of the firearm action that closes the breech of a breech loading weapon (whether small arms or artillery) before or at the moment of firing. It seals the breech and contains the pressure generated by the ignited propellant .

The meaning of BREECHBLOCK is the block in breech-loading firearms that closes the rear of the barrel against the force of the charge and prevents gases from escaping.

2024年2月20日 · A breechblock is a component in firearms that closes the rear of the barrel, sealing the breech during firing. It moves into position to lock the breech during firing and then unlocks to allow for the extraction and ejection of the spent cartridge.

Henry VIII 's breech-loading hunting gun, 16th century. The breech block rotates on the left on hinges, and is loaded with a reloadable iron cartridge. Thought to have been used as a hunting gun to shoot birds. The original wheellock mechanism is missing.

Breech mechanisms can be divided into two types: sliding block (for QF equipments), and breech screw (for QF or BL equipments). Safety devices, to prevent firing until the block and/or gearing is fully closed. The breech ring is made up of two slotted jaws between which the block slides. The rings are either 'closed jaw' or 'open jaw' types.