Der Stro
I collect British .303 Enfield rifles and in the process learned a great deal about how the British and Commonwealth countries handle the sale of firearms.
Here in the U.S. a importer is not required to inspect or reproof a milsurp rifle like the military .303 Enfield rifle. In the U.K. a milsurp or commercial rifle would have to be inspected and proof fired before the weapon could be re-sold.
"The Proof Acts lay down that no small arm may be sold, exchanged or exported, exposed or kept for sale or exchange or pawned unless and until it has been fully proved and duly marked."
The Proof and Testing of Firearms, Birmingham Proof House, U.K.
http://www.gunproof.com/Proofing/proofing.html
Under the older British proof testing system two proof rounds would be fired, one dry proof round to proof the barrel and a oiled proof round to proof the bolt and action. Note, an oiled cartridge delivers twice the bolt thrust as a dry cartridge to put maximum pressure on the bolt and receiver. (Maximum thrust on locking lugs and receiver lug recesses)
Under the new system only a dry proof cartridge is fired when reproofing firearms because repeated use of the oiled proof cartridge was over stressing and damaging the firearms causing lug setback and excess headspace.
So there you have it, some might call it overkill in the U.K. and here in the U.S. its Caveat emptor - "Let the buyer beware".
Below, this rebuilt 1916 Enfield below was re-proofed by the British before it was exported to the U.S. for sale.
Caveat emptor and stupidity below.
An American bought two deactivated non-firing drill purpose Enfield rifles (sold as wall hangers) and took the bolts to a local gunsmith who replaced the welded bolt head and firing pin.
Then this American took these two Enfield rifles to the local gun store and had his buddy sell one of them. The problem was the kid who bought the Enfield rifle blew his thumb off the first time he fired the rifle.
Two half inch holes had been drilled into either side of the chamber on these British "deactivated" drill purpose rifles and this idiot put them back into firing condition. Caveat emptor - "Let the buyer beware".
When buying a used firearm you have "NO" idea what the owner before you did to the rifle you are going to buy, so "YOU" better know what you are doing or find someone who does.
(and any idiot can hang a Gunsmith shingle up)