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Double Rifles, Single Shots & Combinations >> Double Rifles

HawaiiPD
.224 member

Reged: 05/05/04
Posts: 14
Loc: Oahu, Hawaii

Re: Double Rifle question
14/05/04 09:43 AM

A question on proof pressure of a modern gun.

My on the barrel flats of my Wm. Douglass 470 London Proofed
in 1998, is stamped the proof pressure of 3120 BAR and I believe the gun was regulated with Federal ammo. On the top of the barrels is printed " .470 NE 500 grain bullet. What proof pressure is this, Pmax,Pmin, Pave? Is 1 BAR equal to 14.7 psi at sea level? So 3120 x 14.7 psi = 45,864 psi????

In the A-Square reloading manual "Any Shot You Want.", 470
NE is rated with a Piezo psi max ave at 39,187 and
Maximum individual at 45,065. Their recommended loads "red
line" anything over the 39,187 figure.

Post Extras

Entire topic
Subject	Posted by	Posted on
Double Rifle question	bigokie	30/04/04 07:12 AM
Re: Double Rifle question	HawaiiPD	14/05/04 09:43 AM
Re: Double Rifle question	470Rigby	14/05/04 10:58 AM
Re: Double Rifle question	atkinson6	14/05/04 05:18 AM
Re: Double Rifle question	470Rigby	07/05/04 12:02 AM
Re: Double Rifle question	4seventy	14/05/04 11:07 AM
Re: Double Rifle question	470Rigby	14/05/04 02:21 PM
Re: Double Rifle question	bigokie	01/05/04 06:33 AM
Re: Double Rifle question	Marrakai	02/05/04 02:11 AM
Re: Double Rifle question	DUGABOY1	06/05/04 01:13 PM

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