# Gun Barrel Proof Act 1950, Part I: Smooth Bore or Muzzle-Loading Arms

Extent: E+W+S+N.I.

No. of gauge (See Note B below)
First Class (Single barrelled muzzle-loading arms of smooth bore)
Second Class (Double barrelled muzzle-loading arms of smooth bore)
Third Class (Muzzle-loading rifled arms)
Fourth Class(Breach-loading arms of smooth bore)
Provisional proof
Definitive proof
s. d.
s. d.
s. d.
A to 3
50 0
50 0
50 0
4 to 6
11 6
10 6
10 6
7 to 9
11 6
3 0
7 0
10 to 50
5 0
1 6
4 0
Smaller than 50
As for Class V of similar bore
1 6
4 0

---
Source: https://www.legislation.gov.uk/ukla/Geo6/14/3/schedule/part/I (the official version)
Page: https://openlegislation.uk/gun-barrel-proof-act-1950/schedule/part-I
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.