.455 Webley is a British handgun cartridge, most commonly used in the Webley top break revolvers Marks I through VI. It is also known as ".455 Eley" and ".455 Colt" and "Webley.455 revolver".
A variety of .455 Webley cartridges
From left to right: .450 Adams, .455 Webley Mk I, .455 Webley Mk II cartridges
.455 Webley Auto Mk I cartridge
M1911 pistol "British Service Model", which uses the Webley Auto Mk I cartridge. The weapon is stamped with ".455" on the slide and the underside of the magazine
A wadcutter is a special-purpose flat-fronted bullet specifically designed for shooting paper targets, usually at close range and at subsonic velocities typically under approximately 270 metres per se
.32 ACP full metal jacket, .32 S&W Long wadcutter, .380 ACP jacketed hollow point (L-R)
.38 Special wadcutters loaded cartridges, 148 grains (9.6 g) hollow-base wadcutter bullet and target showing the clean round holes
Keith-style SWC with one crimping groove and one filled lubrication groove. In practice, the bullet can be crimped over the leading band, or on the crimping groove, as desired.
A typical 4.5 mm (.177 in) match diabolo air gun pellet, in the HBWC (Hollow Base Wadcutter) configuration