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L.m.a.A !

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Aha, Götz von Berlichingen lebt noch!

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L.m.a.A !

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Aha, Götz von Berlichingen lebt noch!

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Edited by JabaliHunter (23/03/10 01:25 AM)

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Well, I feel much safer behind a Mauser or Mannlicher-Schoenauer, even with a cut receiver ring, than behind a Blaser, be it a R93 or a new R8. At least I am sure that the bolt will not come back into my face in case of a failure.

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500N

How many working .318 WR rifles will you find worldwide(in past and present). How many rounds have passed.

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Why used Rigby , H&H , Jeffery (immediately following the year 1912 , when Rigbys lost their privilege as Mausers sole UK representatve) magnum length actions for the long cartridges.

You will notice that the Jeffery (or WR) cartridges do not approach the OAL of the .350 or .416 Rigby for which the magnum action was originally designed. The fact that they later offered their rifles utilizing a mag. action could very well have been due to market forces rather than an admission of manufacturing an inferior weapon prior to that. The proof is in the pudding - I would still like to see a failed WR action.



What does proofing tell us ?

When a carpenter modifies an armchair by sawing the backrest to half of the original thickness you may doubt that it is stable.
When you ask im for stability he may answer : I proofed it for stability with hundreds of slim ladies.

Proofing is to show that the rifle has withstood a HIGHER power cartridge than that which is meant to be the service charge - not "slim ladies" - terrible analogy. Rifles aren't proofed with less powerful loads than standard.

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Also, to expect that the cutaway on the front ring predisposes the action to fail, you are also expecting the other front lug to fail as well as the rear lug on the bolt.
That would be an interesting test - remove the top lug on a Mauser bolt and then test fire it (under controlled conditions of course) to see when or if it fails. I have a standard bolt which I will donate for the cause.

Edited by Huvius (24/03/10 12:21 PM)

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Not to add fuel to an already overheated controversy, but the usual complaint levelled at using magnum length cartridges in a standard length action is that the lower locking lug recess is weakened by the amount of metal required to be removed in order to accomodate the longer magazine and the new feed ramp, so if one locking lug recess went, the other was likely to do so also.

Conversely, the total back thrust on a bolt face is unlikely to be as much as the gas pressure per square inch times the actual case head area of the cartridge, which in the case of the .318 would be about .17 square inches. Multiplied by 18.5 tonnes, which is the value ascribed to .318 chamber pressure by Taylor, would be about 3.145 tonnes rearward pressure on the bolt face.

If a "tonne" is a long ton, or a metric ton (2200 pounds), then this would amount to slightly under 7000 pounds of back thrust, assuming the cartridge failed to obturate and cling to the chamber wall. Even a receiver weakened as described, or one weakened by cutting a dovetail in the receiver ring for the purpose of scope mounting, could probably withstand that kind of treatment with no problem, but I feel confident that none of these arrangements would even be accepted for proof testing in Germany, let alone pass proof.

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I didn't say it wouldn't pass proof. I said that it wouldn't be accepted for proof testing. The German contributors would know better about this.

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