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Double Rifles, Single Shots & Combinations >> Double Rifles

ArnoldB
.300 member

Reged: 23/07/04
Posts: 139
Loc: Uk

Re: My Holland .500/.465 blew a barrel
01/04/05 12:03 PM

The first I heard about one going was about 5 years ago.
There have been a few since(or even before) as mentioned above but nobody has been hurt as of yet.

From what I know it has always been the right barrel that blew up and always near where the brazing has been done as in chamber area.

-My own personal view is that it has to do with the metal compostion of the steel used(those barrels were never designed to fire high pressure modern powder)

-Temper embrittlement to a degree (some explanation here here
)Not quite the same as what is explained in that doc but heading towards that direction. One doesn't harden a barrel...
Don't forget in those days one didn't have a blowtorch nor electrical heating elements to heat up the chopper lumps to brazing temperature which is very high as one wants to brazing to flow everywhere, more lickely heated in forge in some way, I have never asked anyone how it used to be done.
The temper embrittlement could happen by the barrel cooling down to quickly and actually hardening it in places, an open window and a draft in the workshop could do that one as far as I know.

-Heating high carbon steel up to great temperature also has different effects as in weakening it, you might have to ask 2piper and ChuckH on gunshop they corrected me in a way last time I came out with something similar..

The reason I think like that is as there was a piece broken off..
This is very good read about an analysis after a gun blew up
http://www.thegunzone.com/m1akb/762r.html (found through a link on accuratreloading..)
He doesn't mention where the heat of the metal was for to long.

-Metal fatigue, continual exposure to high pressure, from what I know it was always the right barrel..right barrel that's most lickely to be most shot and used.
Don't see any relevance with looking for barrel obstructions or reloading error or ammo error.

Those are just my personal views, I'm not a metallurgist nor claim to be one but like you interested in what causes them.
These things unfortunately do happen.

.50AccuracyInternational with error in barrel steel?

Hope it makes some sense and is helpfull.
Let us know if you find out some more, I can see an accident happening with someone on safari.

Arnold

Edited by ArnoldB (01/04/05 12:05 PM)

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Subject	Posted by	Posted on
My Holland .500/.465 blew a barrel	CFA	31/03/05 03:45 PM
Re: My Holland .500/.465 blew a barrel	500grains	04/04/05 11:04 AM
Re: My Holland .500/.465 blew a barrel	CFA	04/04/05 12:20 PM
Re: My Holland .500/.465 blew a barrel	500grains	04/04/05 12:36 PM
A warranty won't save your life...	tinker	05/04/05 05:08 AM
Re: A warranty won't save your life...	CFA	05/04/05 02:57 PM
Re: A warranty won't save your life...	tinker	05/04/05 04:54 PM
Just got back from the lab...	tinker	06/04/05 06:34 AM
Re: Just got back from the lab...	CFA	06/04/05 07:31 AM
Re: Just got back from the lab...	tinker	06/04/05 09:10 AM
Re: Just got back from the lab...	unspellable	07/04/05 09:19 AM
Re: Just got back from the lab...	NitroX	06/04/05 02:09 PM
Re: Just got back from the lab...	tinker	06/04/05 05:35 PM
Re: Just got back from the lab...	k80	06/04/05 10:21 AM
Re: My Holland .500/.465 blew a barrel	tinker	01/04/05 03:44 PM
Re: My Holland .500/.465 blew a barrel	unspellable	03/04/05 03:03 AM
Re: My Holland .500/.465 blew a barrel	bonanza	02/04/05 12:20 AM
Re: My Holland .500/.465 blew a barrel	CFA	01/04/05 05:24 PM
The remains of an old gun...	tinker	01/04/05 06:10 PM
Re: The remains of an old gun...	4seventy	01/04/05 10:06 PM
Re: The remains of an old gun...	CptCurl	01/04/05 09:53 PM
Re: The remains of an old gun...	tinker	02/04/05 03:08 AM
Re: The remains of an old gun...	4seventy	02/04/05 09:06 AM
not case hardening...	tinker	02/04/05 09:17 AM
Re: not case hardening...	4seventy	02/04/05 10:26 AM
paper thin barrels and the sweetness of fu*kall...	tinker	02/04/05 11:10 AM
Re: paper thin barrels and the sweetness of fu*kall...	4seventy	02/04/05 01:41 PM
Re: paper thin barrels and the sweetness of fu*kall...	tinker	02/04/05 02:20 PM
Re: paper thin barrels and the sweetness of fu*kall...	4seventy	02/04/05 02:37 PM
Bees' knees and blown barrels...	tinker	02/04/05 02:43 PM
Re: not case hardening...	NE450No2	02/04/05 11:06 AM
Blown barrel	4seventy	02/04/05 04:02 PM
Re: Blown barrel	DoubleD	03/04/05 12:33 AM
Re: Blown barrel	NitroX	03/04/05 03:07 AM
Re: Blown barrel	DoubleD	03/04/05 10:14 AM
Re: Blown barrel	NitroX	03/04/05 11:52 AM
Re: Blown barrel	NE450No2	03/04/05 03:46 AM
Re: Blown barrel	475Guy	03/04/05 06:34 AM
Re: Blown barrel	tinker	03/04/05 07:07 AM
Re: Blown barrel	CFA	03/04/05 02:43 PM
Re: Blown barrel	unspellable	03/04/05 09:31 AM
Re: Blown barrel	NE450No2	03/04/05 12:02 PM
Wm. Evans	unspellable	04/04/05 04:26 AM
Re: Wm. Evans	NE450No2	04/04/05 05:37 AM
Re: Blown barrel	mickey	03/04/05 12:50 PM
Re: not case hardening...	new_guy	02/04/05 09:42 AM
Re: My Holland .500/.465 blew a barrel	SteveH	01/04/05 02:08 PM
Re: My Holland .500/.465 blew a barrel	bwanabloke	01/04/05 03:06 PM
Re: My Holland .500/.465 blew a barrel	ArnoldB	01/04/05 12:03 PM
Re: My Holland .500/.465 blew a barrel	NE450No2	01/04/05 12:20 PM
Re: My Holland .500/.465 blew a barrel	mickey	31/03/05 04:42 PM
Re: My Holland .500/.465 blew a barrel	NE450No2	31/03/05 06:23 PM
Re: My Holland .500/.465 blew a barrel	Bwanaclark	06/06/06 06:23 AM
Re: My Holland .500/.465 blew a barrel	400NitroExpress	06/06/06 05:41 PM
Re: My Holland .500/.465 blew a barrel	Bwanaclark	07/06/06 05:58 AM
Re: My Holland .500/.465 blew a barrel	400NitroExpress	07/06/06 06:28 AM
Re: My Holland .500/.465 blew a barrel	armbar	07/06/06 08:51 PM
Re: My Holland .500/.465 blew a barrel	armbar	07/06/06 08:57 PM
Re: My Holland .500/.465 blew a barrel	400NitroExpress	08/06/06 10:12 AM
Re: My Holland .500/.465 blew a barrel	armbar	08/06/06 12:11 PM
Re: My Holland .500/.465 blew a barrel	bulldog563	17/06/06 01:49 PM
Re: My Holland .500/.465 blew a barrel	NE450No2	17/06/06 06:19 PM
Re: My Holland .500/.465 blew a barrel	500grains	07/06/06 11:41 PM
Re: My Holland .500/.465 blew a barrel	CFA	06/06/06 02:57 PM
Re: My Holland .500/.465 blew a barrel	Bwanaclark	07/06/06 04:20 AM
Re: My Holland .500/.465 blew a barrel	NE450No2	06/06/06 04:49 PM
Re: My Holland .500/.465 blew a barrel	400NitroExpress	06/06/06 07:04 PM
Re: My Holland .500/.465 blew a barrel	4seventy	06/06/06 08:21 PM
Re: My Holland .500/.465 blew a barrel	400NitroExpress	07/06/06 12:24 AM
Re: My Holland .500/.465 blew a barrel	armbar	06/06/06 08:11 PM
Re: My Holland .500/.465 blew a barrel	new_guy	01/04/05 01:16 AM
Re: My Holland .500/.465 blew a barrel	mstarling	01/04/05 02:18 AM
Re: My Holland .500/.465 blew a barrel	mickey	01/04/05 03:32 AM
Re: My Holland .500/.465 blew a barrel	CptCurl	31/03/05 09:52 PM
Re: My Holland .500/.465 blew a barrel	CFA	01/04/05 04:40 AM
Re: My Holland .500/.465 blew a barrel	NE450No2	01/04/05 07:49 AM
The pressure curve...	tinker	01/04/05 08:58 AM
Re: The pressure curve...	JudgeG	01/04/05 09:32 AM
Re: The pressure curve...	CFA	01/04/05 10:27 AM
Re: The pressure curve...	mickey	01/04/05 12:31 PM
Re: The pressure curve...	Will	02/04/05 10:07 AM
Re: The pressure curve...	CFA	02/04/05 12:24 PM
Re: My Holland .500/.465 blew a barrel	CptCurl	01/04/05 08:56 AM
Re: My Holland .500/.465 blew a barrel	NE450No2	01/04/05 09:49 AM
Re: My Holland .500/.465 blew a barrel	bonanza	01/04/05 07:57 AM
Re: My Holland .500/.465 blew a barrel	NE450No2	01/04/05 08:03 AM
Re: My Holland .500/.465 blew a barrel	Chasseur	01/04/05 01:05 AM
Re: My Holland .500/.465 blew a barrel	Rusty	31/03/05 07:53 PM
Re: My Holland .500/.465 blew a barrel	NitroX	31/03/05 08:54 PM

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