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Double Rifles, Single Shots & Combinations >> Double Rifles

hoppdoc
.400 member

Reged: 02/03/06
Posts: 1791
Loc: Southeastern USA

Re: Proof loads
24/03/06 10:33 AM

Fascinating Thread!!

I think I understand proofing.I assume the conditions to proof are standardized and proof loads should generate at least 30% more pressure than standard.7% more powder should generate at least 30% more pressure

From what I have read a boxlock action is structurally weaker than a bolt action.
How much pressure can each one stand?

From this discussion I assume I should use the table powder charge as the absolute max for doubles even if the velocity is sub par. I assume the powder charge is the limiting factor since pressure is related to the 4th power of the charge used.

This is a big difference from how I load rifle shells. I chrono and attain the velocity desired(compensated for barrel length) and then lower the charge progressively till the most accurate combo is found. Max may be several grains over the powder tables max.
Never had any problems cause I hunt bolt actions in cooler mountainous hunting seasons but I quess that the strength of the bolt action may be more forgiving than a boxlock.

Looks like loading Doubles is touchier with the powder charge and filler et al.Add to that you hunt in hotter climates that cause higher firing pressures

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Subject	Posted by	Posted on
Proof loads	doublegunfan	18/11/05 07:44 AM
Re: Proof loads	Birdhunter50	08/04/16 10:55 PM
Re: Proof loads	Birdhunter50	30/05/15 10:38 PM
Re: Proof loads	Grenadier	27/02/08 12:06 PM
Re: Proof loads	Bramble	29/02/08 04:25 AM
Re: Proof loads	4seventy	21/07/08 05:04 PM
Re: Proof loads	Bramble	22/07/08 11:18 AM
Re: Proof loads	Tatume	22/07/08 08:49 PM
Re: Proof loads	9.3x57	25/07/08 11:44 AM
Re: Proof loads	450_366	25/07/08 04:00 AM
Re: Proof loads	Bramble	23/07/08 06:49 AM
Re: Proof loads	Birdhunter50	23/07/08 09:51 AM
Re: Proof loads	Grenadier	23/03/08 09:09 AM
Re: Proof loads	450_366	09/06/08 11:09 PM
Re: Proof loads	Grenadier	29/02/08 05:43 AM
Re: Proof loads	Bramble	29/02/08 08:06 AM
Re: Proof loads	Sarg	29/02/08 08:22 AM
Re: Proof loads	Marrakai	28/02/08 02:07 PM
Re: Proof loads	Grenadier	29/02/08 05:08 AM
Re: Proof loads	Sarg	28/02/08 07:51 PM
Re: Proof loads	Grenadier	29/02/08 05:14 AM
Re: Proof loads	Judson	17/11/05 11:10 AM
Re: Proof loads	Tom_Bigbore	18/11/05 12:14 AM
Re: Proof loads	577Robert	23/11/05 08:57 PM
Re: Proof loads	doublegunfan	24/11/05 12:48 AM
Re: Proof loads	mickey	17/11/05 11:56 AM
Re: Proof loads	doublegunfan	17/11/05 09:54 PM
Re: Proof loads	banzaibird	17/11/05 11:08 PM
Re: Proof loads	iwantadouble	18/11/05 12:36 AM
Re: Proof loads	banzaibird	18/11/05 01:03 AM
Re: Proof loads	Tom_Bigbore	18/11/05 02:04 AM
Re: Proof loads	banzaibird	18/11/05 07:44 AM
Re: Proof loads	unspellable	22/11/05 10:43 AM
Re: Proof loads	doublegunfan	22/11/05 10:57 PM
Re: Proof loads	unspellable	23/11/05 06:10 AM
Re: Proof loads	DarylS	23/11/05 10:31 AM
Re: Proof loads	hoppdoc	24/03/06 10:33 AM
Re: Proof loads	DarylS	26/03/06 04:05 AM
Re: Proof loads	hoppdoc	26/03/06 03:02 PM
Re: Proof loads	400NitroExpress	27/08/07 06:38 AM
Re: Proof loads	9.3x57	27/08/07 06:47 AM
Re: Proof loads	DarylS	27/03/06 03:11 AM
Re: Proof loads	Bramble	12/02/07 06:48 AM
Re: Proof loads	308	12/02/07 02:45 PM
Re: Proof loads	Raff	13/02/07 02:38 AM
Re: Proof loads	9.3x57	08/06/07 11:41 PM
Re: Proof loads	Marrakai	09/06/07 08:52 AM
Re: Proof loads	bonanza	27/08/07 08:37 AM
Re: Proof loads	beleg2	02/09/07 01:59 PM
Re: Proof loads	9.3x57	09/06/07 09:37 AM
Re: Proof loads	larcher	01/03/07 05:37 AM
Re: Proof loads	pistolchamp	29/03/07 05:38 AM
Re: Proof loads	Bramble	29/03/07 09:49 AM
Re: Proof loads	Peterb	23/11/05 12:13 PM
Re: Proof loads	500Nitro	24/11/05 01:33 AM
Re: Proof loads	Peterb	24/11/05 08:58 AM
Re: Proof loads	theprof1	07/07/19 02:17 PM
Re: Proof loads	crshelton	08/07/19 12:50 AM
Re: Proof loads	Wayne59	09/04/16 12:40 AM
Re: Proof loads	Kaimiloa	16/04/09 11:50 AM
Re: Proof loads	Huvius	16/04/09 01:25 PM
Re: Proof loads	Bramble	16/04/09 07:30 PM
Re: Proof loads	Huvius	16/04/09 11:09 PM
Re: Proof loads	450_366	16/04/09 07:59 PM
Re: Proof loads	9.3x57	16/04/09 11:18 PM
Re: Proof loads	DarylS	17/04/09 12:07 AM
Re: Proof loads	KWK	13/07/10 12:32 PM
Re: Proof loads	DarylS	14/07/10 12:44 AM
Re: Proof loads	KWK	14/07/10 01:26 AM
Re: Proof loads	CraigK	21/11/10 06:18 PM
Re: Proof loads	beleg2	28/11/10 11:15 PM
Re: Proof loads	DoubleRifle999	06/06/12 09:45 AM
Re: Proof loads	enfieldspares	25/07/07 05:36 AM
Re: Proof loads	Vinnie	18/06/07 09:20 PM
Re: Proof loads	Rich	04/08/07 11:56 AM
Re: Proof loads	9.3x57	18/06/07 10:31 PM
Re: Proof loads	Vinnie	18/06/07 11:33 PM
Re: Proof loads	dnovo	18/06/07 11:22 PM
Re: Proof loads	doublegunfan	24/11/05 10:09 PM
Re: Proof loads	Peterb	25/11/05 03:48 AM
Re: Proof loads	Judson	03/12/05 10:57 AM
Re: Proof loads	k80	23/11/05 12:03 PM
Re: Proof loads	500Nitro	22/11/05 11:30 PM
Re: Proof loads	mickey	18/11/05 01:58 AM
Re: Proof loads	400NitroExpress	17/11/05 05:26 AM
Re: Proof loads	Peterb	17/11/05 04:19 AM
Re: Proof loads	foxfire	17/11/05 02:15 AM

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