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Double Rifles, Single Shots & Combinations >> Double Rifles

unspellable
.300 member

Reged: 06/03/04
Posts: 187
Loc: Iowa

Re: Proof loads
23/11/05 06:10 AM

I don't know how much a heavier bullet would increase pressure with a smokeless load so I would stay away from that myself. My guess is that increasing the bullet weight by 10% would increase the pressure by more than 10%. Higher pressure in itself will cause the powder to burn faster. The rule of thumb that says pressure is proportional to the fourth power of the powder charge applies to any powder that is working in it's normal pressure range. Any given powder will work at its best in a certain pressure range. For example, a shot gun powder will burn smoothly in the 10000 to 15000 cup range while most slow rifle powders will not burn smoothly at such a low pressure. But it is only a rule of thumb, your milage may vary.

There are pressure measuring systems available to the individual experimenter but they have the drawback that they measure pressure relative to a given factory load rather than giving you the pressure itself. In other words you can say your handload runs 1.07 times the pressure of a given factory load but you can't say what the pressure actually is. A true pressure measurement requires a test set up that's beyond the average guy's means.

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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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