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Double Rifles, Single Shots & Combinations >> Double Rifles

bonanza
.400 member

Reged: 17/05/04
Posts: 2335
Loc: South Carolina

Re: Cordite equivalent
29/06/10 09:35 PM

The double edge sword to me is the profile of old double rifles. You can't use slow powder because the tubes are so thin starting from the fore stock. Fast powder can spike.

Varget and R15 are medium powders that are probably the safest.

Modern barrels are made from Chrome Molybdenum steel that is very strong and highly elastic.

But, here is the reality. Every time a rifle is shot the barrel is strained which work hardens it. The metal fatigue, which is cumulative, reaches a point where it can not contain the pressure and ruptures.

With modern 4130/4140 that's thousands of rounds, with the old low carbon steel, who knows?

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Post Extras

Entire topic
Subject	Posted by	Posted on
Cordite equivalent - WARNING re IMR3031	fraserdouble	25/02/09 10:27 PM
Re: Cordite equivalent	grandveneur	26/02/09 03:11 AM
Re: Cordite equivalent	Marrakai	26/02/09 10:45 PM
Re: Cordite equivalent	bonanza	29/06/10 09:35 PM
Re: Cordite equivalent	DarylS	30/06/10 12:45 AM
Re: Cordite equivalent	grandveneur	30/06/10 06:40 PM
Re: Cordite equivalent	mauserand9mm	01/07/10 10:22 AM
Re: Cordite equivalent	grandveneur	01/07/10 03:23 PM
Re: Cordite equivalent	grandveneur	29/06/10 06:17 PM
Re: Cordite equivalent	Ron_Vella	29/06/10 08:47 PM
Re: Cordite equivalent	beleg2	29/06/10 08:59 PM
Re: Cordite equivalent - WARNING re IMR3031	NitroX	29/06/10 08:55 PM
Re: Cordite equivalent	doubleriflenut	26/02/09 02:53 AM

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