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Double Rifles, Single Shots & Combinations >> Double Rifles

400NitroExpress
.400 member

Reged: 26/11/03
Posts: 1154
Loc: Lone Star State

Re: Disk-set Strikers Sticking!
31/05/07 07:55 AM

This isn't any kind of big deal, so don't condemn a nice rifle over it.

Yes, the problem you describe is common and normal.

These rifles were set up to fire the ammunition of the day - Kynoch ammo loaded with Cordite lit by a much larger diameter Berdan cap that used a copper (corrosive) or brass (non-corrosive) primer cup. What was ideal for the protrusion and shape of strikers for these primers isn't for the smaller modern Boxer primers. Some of the strikers in these rifles weren't even round. The firing pins probably need to be re-shaped and re-radiused by a smith who works regularly with DRs.

Be wary of Federal factory .470 ammo. There are two common problems with it. It is usually overloaded. A dealer friend recently chronographed a batch of it from a new Heym with 24" barrels and got 2,220 fps, which is way too fast. Your result of under 2,000 fps with 26" barrels is the other problem - lot to lot consistency is often poor.

--------------------
"Serious rifles have two barrels, everything else just burns gunpowder."

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Subject	Posted by	Posted on
Disk-set Strikers Sticking!	John	31/05/07 06:53 AM
Re: Disk-set Strikers Sticking!	500Nitro	31/05/07 07:12 AM
Re: Disk-set Strikers Sticking!	400NitroExpress	31/05/07 07:55 AM
Re: Disk-set Strikers Sticking!	500Nitro	31/05/07 08:05 AM
Re: Disk-set Strikers Sticking!	400NitroExpress	31/05/07 08:41 AM
Re: Disk-set Strikers Sticking!	500Nitro	31/05/07 08:46 AM
Re: Disk-set Strikers Sticking!	John	31/05/07 09:11 AM
Re: Disk-set Strikers Sticking!	500Nitro	31/05/07 09:53 AM
Re: Disk-set Strikers Sticking!	John	31/05/07 10:00 AM
Re: Disk-set Strikers Sticking!	500Nitro	31/05/07 10:40 AM
Re: Disk-set Strikers Sticking!	John	31/05/07 11:00 AM
Re: Disk-set Strikers Sticking!	400NitroExpress	31/05/07 12:33 PM
Re: Disk-set Strikers Sticking!	Arctic	31/05/07 04:58 PM
Re: Disk-set Strikers Sticking!	John	01/06/07 10:13 AM
Re: Disk-set Strikers Sticking!	Marrakai	01/06/07 01:36 PM
Re: Disk-set Strikers Sticking!	DUGABOY1	02/06/07 04:05 AM
Re: Disk-set Strikers Sticking!	500Nitro	02/06/07 05:09 AM
Re: Disk-set Strikers Sticking!	Arctic	01/06/07 05:24 PM
Re: Disk-set Strikers Sticking!	John	01/06/07 11:17 PM
Re: Disk-set Strikers Sticking!	500Nitro	01/06/07 11:34 PM
Re: Disk-set Strikers Sticking!	John	02/06/07 02:56 AM
Re: Disk-set Strikers Sticking!	400NitroExpress	02/06/07 03:02 AM

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