Question about Proof Houses

[miketv]

Greetings all,

Does anyone know the year that the English proof houses switched from a 19ton proof to a 20ton proof on the 7.62x51 (308 win) cartridge?

Thank You!

Mike

[dromia]

I don't Mike but an email to this lot might get an answer.

There is a charge for library searches but I would try a direct contact with this question and see what they say.

http://www.gunproof.com/scroll2a.jpg

[miketv]

Thanks for the lead Adam

I'm trying to date something and this info might help a bit.

Mike

[Strangely Brown]

I seem to remember that it was about three years ago that the NRA (Bisley) had a note about it pinned up in the range office telling members that in their best interests they should get 7.62mm Enfields (No 4 based) re-proofed.

I assumed at the time that this was new advice from the proof house.

[PeterN2]

I was talking to a chap, a while ago now, who took a rifle to be prooved. He was asked if he wanted it prooved as a 7.62x51 or .308 Win. He asked what the difference was and the answer was 'a ton'. One was 19 tons and one was 20 tons. I can't remember which tonnage went with which calibre now.

Regards

Peter.

[dromia]

The military round is higher pressure than the .308" Win, seem to remember reading an article about it somewhere.

[miketv]

Gents,

I appreciate the information and direction you provided, it's a big help! The rifle I'm looking into is a No5 that was converted to .308win at some point in it's life. The 20ton proof marking on the barrel has mad me a bit suspicous that it is a civilian conversion of some type. The curious thing is that the nomenclature for the model is 7.62mm XIIE1 which resembles some of the enfield experimental numberings from the late 1960's.

I think the rifle could be a Charnwood conversion but I'm just not sure.. Either way it's a really nice rifle..

regards,

Mike