Webley & Scott 455 Self-Loader Pistol: History of Britain s gunsandammo.com - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from gunsandammo.com Daily Mail and Mail on Sunday newspapers.
Blowback is another system used with self-loading firearms, and it obtains the energy from the motion of the cartridge case as it is pushed to the rear by the expanding gas created by the ignition of the propellant charge.