bb airgun
51Hertzian cone — A Hertzian cone is the cone of force that propagates through a brittle, amorphous or cryptocrystalline solid material from a point of impact, eventually removing a full or partial cone. An example often occurs when a plate glass window is struck… …
52External ballistics — is the part of the science of ballistics that deals with the behaviour of a non powered projectile in flight. External ballistics is frequently associated with firearms, and deals with the behaviour of the bullet after it exits the barrel and… …
53Lung Fu Shan Country Park — (Chinese: 龍虎山郊野公園, established December 18 1998) is a country park located in the Central and Western District of Hong Kong. It covers the densely vegetated slopes of Lung Fu Shan, including the disused Pinewood Battery as well as the Pinewood… …
54M77 motorway — UK motorway routebox motorway= M77 length mi= 20 length km= 32 direction= North South start= Glasgow Kinning Park destinations= A77 South west Scotland end= Fenwick work started= 1977 opening date= 1977 completion date=2005 junctions= The M77… …
55Internal ballistics — Internal ballistics, a subfield of ballistics, is the study of a projectile s behavior from the time its propellant s igniter is initiated until it exits the gun barrel. The study of internal ballistics is important to designers and users of… …
56Pump-action — A pump action rifle or shotgun is one in which the handgrip can be pumped back and forth in order to eject and chamber a round of ammunition. It is much faster than a bolt action and somewhat faster than a lever action, as it does not require the …
57Diana — may refer to: Diana (mythology), ancient Roman goddess of the moon, the hunt, and chastity Diana (given name), people with the given name Diana Diana, Princess of Wales, first wife of Charles, Prince of Wales Contents 1 Music 2 Fiction and TV 3… …
58.22 CB — Infobox Firearm Cartridge name= caption= A .22 CB cap, .22 CB short, and .22 Long Rifle origin= USA type= rimfire, target service= used by= wars= designer= design date= manufacturer= production date=1888 number= variants= is SI specs= parent=.22… …
59FN 303 — Infobox Weapon|is ranged=yes name=FN 303 origin=flag|Belgium caption=The FN 303 cartridge=.68 in (17.27 mm) action=compressed air weight=2.3 kg (5 lb) empty length=740 mm (29 in) part length=250 mm (10 in) rate=semi automatic feed=15 round drum… …
60Telescopic sight — Scope redirects here. For other uses, see Scope (disambiguation). View through a 4x rifle scope. A telescopic sight, commonly called a scope, is a sighting device that is based on an optical refracting telescope. They are equipped with some form… …
