
| Year | May 1915 |
| Weapon Type | Service Revolver |
| Origin & Designer | [@designer] |
| Numbers Produced | 125.000 |
| Crew | [@crew] |
| Calibre | .455 (11.6x23) |
| Elevation | [@elevation] |
| Traverse | [@gun_traverse] |
| Cartridge Weight | [@cartridge_weight] |
| Round Weight | 265gr (17g) |
| Barrel Length | 152mm |
| Overall Length | 286mm |
| Grenade Types | [@grenade_types] |
| Mount | [@mount] |
| Combat Weight | 1.24 kg |
| Operation | Double Action Top Break |
| Cooling System | [@cooling] |
| Sights | Fixed Front Post & Rear Notch |
| Feed | 6 Round Cylinder |
| Practical Rate of Fire | 18 r.p.m. |
| Maximum Rate of Fire | 30 r.p.m. |
| Blank Cartridge | [@blank_cartridge] |
| Muzzle Velocity | 180 m/s |
| Fuel Capacity | [@fuel_capacity] |
| Minimum Range | [@minimum_range] |
| Effective Range | 35m |
| Maximum Range | 270m |
| Armour Penetration | [@armour_penetration] |
| Bayonet | [@bayonet] |
| Traction | [@traction] |
| Variants | [@variants] |
| Notes | After being the standard service revolver during WW1, the Webley Mk. IV was still wildly used as a sidearm in WW2. |