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Double Rifles, Single Shots & Combinations >> Building Double Rifles & Gunsmithing

kuduae
.400 member

Reged: 13/01/10
Posts: 1792
Loc: middle of Germany

Re: Proof... once again
28/10/10 08:10 AM

Huvius, of course this system was used to test ammo,not rifles. I posted this stuff just to show that the British proofhouses, who also pressure tested ammunition to find the proper proof loads, have a lot of experience with the relations of cases, oil and breech pressures. In the example cited by oupa above, the proofmasters were quite sure the barrels would hold the pressure, but tested the breeching of the rifle. They did not just smear some old oil on the cases. They simply knew from their experince with the ammo testing gun that using the Woolwich system's oil on the cases would increase the pressure on the breech by "at least 30%". And , be assured, European proofmasters have some leeway: If they are sure a gun is safe with the prescribed loads, they let it pass, if not, they will reject it. After firing a "blue pill" load (an American expression, as .30-06 military proofloads had a blue primer), they are to inspect a gun for defects, fi has it gone off face. If a break-open has opened the slightest amount, it will be rejected.

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Entire topic
Subject	Posted by	Posted on
Proof... once again	oupa	27/10/10 09:50 AM
Re: Proof... once again	Birdhunter50	29/10/10 11:41 PM
Re: Proof... once again	Mike_Bailey	30/10/10 12:51 AM
Re: Proof... once again	DarylS	30/10/10 01:35 AM
Re: Proof... once again	GroovyMike	30/10/10 02:10 AM
Re: Proof... once again	450_366	30/10/10 03:04 AM
Re: Proof... once again	oupa	30/10/10 04:39 AM
Re: Proof... once again	tinker	26/12/10 06:48 AM
Re: Proof... once again	DarylS	30/10/10 06:35 AM
Re: Proof... once again	GroovyMike	30/10/10 07:10 AM
Re: Proof... once again	Brithunter	14/12/10 10:33 AM
Re: Proof... once again	DarylS	26/12/10 05:47 AM
Re: Proof... once again	oupa	25/12/10 03:12 PM
Re: Proof... once again	4seventy	27/10/10 03:41 PM
Re: Proof... once again	kamilaroi	27/10/10 06:58 PM
Re: Proof... once again	oupa	28/10/10 03:26 AM
Re: Proof... once again	DarylS	28/10/10 03:57 AM
Re: Proof... once again	kuduae	28/10/10 06:13 AM
Re: Proof... once again	kuduae	28/10/10 06:49 AM
Re: Proof... once again	Huvius	28/10/10 07:36 AM
Re: Proof... once again	4seventy	28/10/10 08:33 AM
Re: Proof... once again	kuduae	29/10/10 07:46 AM
Re: Proof... once again	4seventy	29/10/10 08:26 AM
Re: Proof... once again	4seventy	29/10/10 08:45 AM
Re: Proof... once again	DarylS	29/10/10 10:21 AM
Re: Proof... once again	kuduae	28/10/10 08:10 AM
Re: Proof... once again	4seventy	28/10/10 12:58 PM
Re: Proof... once again	oupa	29/10/10 03:31 AM
Re: Proof... once again	kuduae	29/10/10 07:39 AM
Re: Proof... once again	DarylS	29/10/10 03:30 AM
Re: Proof... once again	kuduae	28/10/10 08:43 AM

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