Impossible to answer without knowing the type of ammunition and projectile
Best left to a gun smith.
Depends on the size of the cartridge.
Yes- but it may require other adjustment (firing a rifle from the left shoulder, etc.
Best left to a gunsmith.
A Thompson Tommy gun will keep firing until u left off the trigger. They are very reliable.
A firing squad?
A firearm which continues firing as long as the trigger is held down (provided it has ammunition left).
gun shop, gun show
its a gun thats why
To Dryfire any gun means to fire it without any projectile in the chamber. No BB's or pellets. For most airsoft guns dry-firing is harmful and may lead to breaking some internal parts. Gearbox can get cracks after much dry-firing.
It is used to hold the gun. In the case of a rifle or shotgun, it helps conntrol recoil by transferring much of the push of firing to the body.
A Paixhans gun is an early naval gun for firing explosive shells.