Gun Barrel Proof Act 1950

Part IIU.K. Breech-Loading Rifled Arms

(Breech-loading rifled arms (including express rifles) declared for use with black powder only) (excluding pistols)

Diameter of bore of breech-loading arms (inches)

(Breech-loading rifled arms specially constructed for use with shot and bullet having the whole or a portion only of their bore rifled and not being of the Fifth Class)

(Breech-loading rifles declared for use with nitro powders not being of the Seventh Eighth or Tenth Class)

Pistols of Fifth Class and automatic pistols of Ninth Class

(Revolving pistols) (up to six shots) (see Note C below)

(Breech-loading rifled arms chambered to take a military small arm cartridge and not being the Tenth Class)

(Breech-loading rifled military arms)

s. d.s. d.s. d.s. d.
over ·4508 65 02 63 6
·450–·3708 64 02 03 0
·369–·3108 63 01 93 0
·309–·2308 63 01 92 6
·229 or smaller diameter8 62 31 92 0