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Double Rifles, Single Shots & Combinations >> Double Rifles

xausa
.400 member

Reged: 07/03/07
Posts: 2037
Loc: Tennessee, USA

Re: Simson and Suhl question.
10/11/09 08:31 AM

Your gunsmith should be able to make a cast of the bore at the muzzle, using Cerrosafe, a metal which melts at the boiling point of water and shrinks slightly after hardening, then expands to the true dimension after cooling.

Crude, but efficient: if you can find some 8X57JR ammunition (.318" bullets), fire a round and then try to slip a .323" bullet in the mouth of the fired case. If it won't go in, you have a JR, if it will, it's a JRS. A .318" bullet will probably keyhole, if fired in an "S" bore barrel. Conversely, a round of 8X57 JRS will probably not chamber in a .318" barrelled weapon.

Neck clearance is the real problem. With sufficient neck clearance, I am satisfied you could shoot .323" diameter bullets in a .318" bore with no ill effects. Insufficient neck clearance may cause pressures to skyrocket and should be avoided like the plague in any caliber rifle.

Post Extras

Entire topic
Subject	Posted by	Posted on
Simson and Suhl question.	jager01	10/11/09 07:13 AM
Re: Simson and Suhl question.	DUGABOY1	11/11/09 07:56 AM
Re: Simson and Suhl question.	jager01	11/11/09 10:32 AM
Re: Simson and Suhl question.	400NitroExpress	11/11/09 11:07 AM
Re: Simson and Suhl question.	DUGABOY1	11/11/09 05:12 PM
Re: Simson and Suhl question.	ellenbr	28/11/09 03:57 AM
Re: Simson and Suhl question.	GroovyMike	14/08/10 05:14 AM
Re: Simson and Suhl question.	xausa	10/11/09 08:31 AM
Re: Simson and Suhl question.	AkMike	10/11/09 07:27 AM
Re: Simson and Suhl question.	400NitroExpress	10/11/09 08:44 AM
Re: Simson and Suhl question.	jager01	10/11/09 08:52 AM
Re: Simson and Suhl question.	jager01	10/11/09 08:53 AM
Re: Simson and Suhl question.	jager01	10/11/09 09:49 AM
Re: Simson and Suhl question.	AkMike	10/11/09 10:10 AM
Re: Simson and Suhl question.	jager01	10/11/09 11:25 AM
Re: Simson and Suhl question.	9.3x57	10/11/09 02:29 PM

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