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Double Rifles, Single Shots & Combinations >> Double Rifles

xausa
.400 member

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

Re: 8X57JR(S) question
18/10/07 07:29 AM

Bonanza,

I have a pre-war (1939) Sauer & Sohn sidelock drilling with separate rifle barrel cocking in 16/16/8X57JR and a Greifelt pre-war (1939) drilling in 12/12/8X60R. Both use the smaller .318" bullet and both are great performers. I suspect that the real problem with the .323" bullet is the fact that the larger bullet means that the cartridge is .005" larger in the neck and the chambers cut for the older .318" bullet simply have too little neck clearance.

It might be fun to take a bolt rifle with the J bore and rechamber it for the S bullet, just to see how much of a difference it made in pressure. After all, .005" is only 1.5% of the .318" bore diameter, and I know of at least one instance of a .308" bullet being shot through a .264" bore with no ill effects, and the .044" difference represents a 16.6% increase in bullet size over bore size.

However, as has been pointed out above, the correct .318 bullets are not all that hard to obtain and bringing one of these beauties back to life is well worth the effort involved. I would want to mount a scope on that rifle, but I assume you know someone competent to do this. Looks like a great buy!

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Subject	Posted by	Posted on
8X57JR(S) question	bonanza	17/10/07 04:56 AM
Re: 8X57JR(S) question	DUGABOY1	23/10/07 08:28 AM
Re: 8X57JR(S) question	xausa	18/10/07 07:29 AM
Re: 8X57JR(S) question	zimhunter	19/10/07 12:01 AM
Re: 8X57JR(S) question	Kalunga	17/10/07 07:23 AM
Re: 8X57JR(S) question	zimhunter	17/10/07 07:34 AM
Re: 8X57JR(S) question	bonanza	17/10/07 10:56 AM
Re: 8X57JR(S) question	fuhrmann	18/10/07 02:39 AM
Re: 8X57JR(S) question	freischuetz	17/10/07 06:22 PM
Re: 8X57JR(S) question	fraserdouble	17/10/07 09:12 PM
Re: 8X57JR(S) question	freischuetz	19/10/07 12:12 PM
Re: 8X57JR(S) question	freischuetz	17/10/07 07:16 AM
Re: 8X57JR(S) question	400NitroExpress	19/10/07 02:16 AM
Re: 8X57JR(S) question	freischuetz	19/10/07 11:19 AM
Re: 8X57JR(S) question	400NitroExpress	19/10/07 01:45 PM

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