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Double Rifles, Single Shots & Combinations >> Double Rifles

unspellable
.300 member

Reged: 06/03/04
Posts: 187
Loc: Iowa

Re: The 9,3x74R Double Rifle, is it the Holy Grail
21/10/04 08:34 AM

Simplest answers first. Side clips supposedly help to prevent side to side movement of the barrels relative to the standing breech face. They may accomplish something in the absence of a third bite, but if you have a third bite in the form of a doll's head or cross bolt that are properly fitted, there's not much left for the side clips to do except look pretty.

Proper lubrication is essential to prevent wear, especially at the hinge pin and cross bolt or doll's head if there is one. The rifle (or gun) will eventually shoot loose due to the pounding on the surfaces in these areas. A proper lubricant acts as a cushion, it can't get out of the way as fast as the firing impulse hits. This greatly reduces the battering these areas must suffer.

As a first approximation, back thrust is equal to pressure times the inside base area of the cartridge. There are a few complications. The case will take a grip on the chamber walls and reduce the back thrust, the inertia of the parts reduces back thrust, etc. That's why the British method of determining pressure by measuring back thrust always yields lower numbers than the American method of measuring through a hole in the side of the chamber. There are advantages to both. the American method is probably better for determining what will blow up the gun but the British method will correlate better to how fast the action will wear.

I'm not sure how the 375 would compare to the 470 but you have the right idea in that it's pressure times area, not simply pressure alone.

Two points for oiling. Oil is bad, bad, on wood. Don't over oil and it's better to store the piece horizontally or muzzle down than butt down like most gun cabinmets seem to do. Most of the lock parts will want oil but grease is called for on the hinge pin and bites.

Here's the question I have yet to figure out. What do you do for cleaning and oiling on a box lock? What evil lurks in there? They're not easy to take apart. The local "gunsmiths" are NOT going to touch my double! Shipping it off to a qualified smith would run to money.

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Subject	Posted by	Posted on
The 9,3x74R Double Rifle, is it the Holy Grail?	NE450No2	19/10/04 06:38 AM
Re: The 9,3x74R Double Rifle, is it the Holy Grail?	luv2safari	20/10/04 02:14 PM
Re: The 9,3x74R Double Rifle, is it the Holy Grail	jgttechjunkie	20/10/04 02:05 PM
Re: The 9,3x74R Double Rifle, is it the Holy Grail?	unspellable	20/10/04 02:45 AM
Re: The 9,3x74R Double Rifle, is it the Holy Grail?	Chasseur	19/10/04 01:04 PM
Re: The 9,3x74R Double Rifle, is it the Holy Grail?	NE450No2	19/10/04 02:25 PM
Re: The 9,3x74R Double Rifle, is it the Holy Grail?	Chasseur	20/10/04 05:07 AM
Re: The 9,3x74R Double Rifle, is it the Holy Grail?	DUGABOY1	20/10/04 07:57 AM
Re: The 9,3x74R Double Rifle, is it the Holy Grail?	Chasseur	20/10/04 10:50 AM
Re: The 9,3x74R Double Rifle, is it the Holy Grail?	ThomasEdwards	19/10/04 12:34 PM
Re: The 9,3x74R Double Rifle, is it the Holy Grail?	NE450No2	19/10/04 02:31 PM
Re: The 9,3x74R Double Rifle, is it the Holy Grail?	bonanza	19/10/04 11:23 PM
Re: The 9,3x74R Double Rifle, is it the Holy Grail?	mickey	20/10/04 12:25 AM
Re: The 9,3x74R Double Rifle, is it the Holy Grail?	DUGABOY1	20/10/04 08:02 AM
Re: The 9,3x74R Double Rifle, is it the Holy Grail?	bonanza	20/10/04 04:32 AM
Re: The 9,3x74R Double Rifle, is it the Holy Grail?	DUGABOY1	20/10/04 08:33 AM
Re: The 9,3x74R Double Rifle, is it the Holy Grail?	mickey	20/10/04 09:00 AM
Re: The 9,3x74R Double Rifle, is it the Holy Grail?	NE450No2	20/10/04 10:53 AM
Re: The 9,3x74R Double Rifle, is it the Holy Grail?	seroadglide	20/10/04 12:17 PM
Re: The 9,3x74R Double Rifle, is it the Holy Grail?	NE450No2	20/10/04 12:44 PM
Re: The 9,3x74R Double Rifle, is it the Holy Grail?	vigillinus	20/10/04 01:02 PM
Re: The 9,3x74R Double Rifle, is it the Holy Grail?	NE450No2	20/10/04 02:26 PM
Re: The 9,3x74R Double Rifle, is it the Holy Grail	BFaucett	21/10/04 01:38 AM
Re: The 9,3x74R Double Rifle, is it the Holy Grail	unspellable	21/10/04 03:54 AM
Re: The 9,3x74R Double Rifle, is it the Holy Grail	DUGABOY1	21/10/04 08:07 AM
Re: The 9,3x74R Double Rifle, is it the Holy Grail	470Rigby	22/10/04 09:10 AM
Re: The 9,3x74R Double Rifle, is it the Holy Grail	bonanza	23/10/04 12:16 AM
Re: The 9,3x74R Double Rifle, is it the Holy Grail	bonanza	21/10/04 04:40 AM
Re: The 9,3x74R Double Rifle, is it the Holy Grail	unspellable	21/10/04 08:34 AM
Re: The 9,3x74R Double Rifle, is it the Holy Grail	AussieMike	22/10/04 02:43 AM
Re: The 9,3x74R Double Rifle, is it the Holy Grail	unspellable	21/10/04 08:41 AM
Re: The 9,3x74R Double Rifle, is it the Holy Grail	bonanza	21/10/04 11:19 PM
Re: The 9,3x74R Double Rifle, is it the Holy Grail	mickey	22/10/04 10:27 AM
Re: The 9,3x74R Double Rifle, is it the Holy Grail	DUGABOY1	23/10/04 12:33 AM
Re: The 9,3x74R Double Rifle, is it the Holy Grail	unspellable	26/10/04 01:54 AM
Re: The 9,3x74R Double Rifle, is it the Holy Grail	atkinson6	26/10/04 02:51 AM
Re: The 9,3x74R Double Rifle, is it the Holy Grail	bonanza	26/10/04 04:50 AM
Re: The 9,3x74R Double Rifle, is it the Holy Grail	AussieMike	26/10/04 10:44 AM
Re: The 9,3x74R Double Rifle, is it the Holy Grail	bonanza	27/10/04 01:10 AM
Re: The 9,3x74R Double Rifle, is it the Holy Grail	AussieMike	27/10/04 09:12 AM
Re: The 9,3x74R Double Rifle, is it the Holy Grail	vigillinus	27/10/04 12:39 PM
Re: The 9,3x74R Double Rifle, is it the Holy Grail	bonanza	28/10/04 12:22 AM
Re: The 9,3x74R Double Rifle, is it the Holy Grail	atkinson6	29/10/04 08:02 AM
Re: The 9,3x74R Double Rifle, is it the Holy Grail	NE450No2	31/12/04 03:57 PM
Re: The 9,3x74R Double Rifle, is it the Holy Grail	DUGABOY1	22/10/04 01:52 AM

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