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Shooting & Reloading - Mausers, Big Bores and others >> Big Bore Rifles

DarylS
.700 member

Reged: 10/08/05
Posts: 26523
Loc: Beautiful British Columbia, Ca...

Re: cast loads in 458WM
10/03/10 12:25 PM

I got away from using pistol and shotgun powders for cast bullet rifle loads many years ago.

I'd tried a load straight out of a book for the Trapdoor Springfield .45/70, in my .458 2" and achieved a pressure excursion with it. I had loaded only 5 rounds and pulled the remaining 4 after firing that 1st one. Absolutely no chance it was a double charge, either - I double checked each one, first visually, then with a 3/8" dowel. I didn't use a filler, either. No hard done, but the report was rather sharp and the primer pocket was expanded. How that can happen with around 25gr. (which is actually a .44 mag load) of powder, I don't know. Detonation?

Anyway - I switched to rifle powders that allowed much higher speeds at reduced pressure with good accuracy. H4895 became my favourite as I seems to work well right down to about 50% of capacity with better accuracy than IMR 3031 & 4198. H4198 developed pressure that required heat treated bullets at 2,000fps, whereas H4895 worked well with straight WW metal.

--------------------
Daryl

"a gun without hammers is like a Spaniel without ears" King George V

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Subject	Posted by	Posted on
cast loads in 458WM	mauserand9mm	07/03/10 09:00 PM
Re: cast loads in 458WM	bonanza	30/04/10 12:49 AM
Re: cast loads in 458WM	mauserand9mm	30/04/10 08:41 PM
Re: cast loads in 458WM	mauserand9mm	17/05/10 01:29 PM
Re: cast loads in 458WM	mauserand9mm	05/11/10 07:59 AM
Re: cast loads in 458WM	DarylS	05/11/10 11:49 AM
Re: cast loads in 458WM	mauserand9mm	05/11/10 09:57 AM
Re: cast loads in 458WM	DarylS	06/11/10 03:32 AM
Re: cast loads in 458WM	VonGruff	06/11/10 05:58 AM
Re: cast loads in 458WM	mauserand9mm	07/11/10 08:39 PM
Re: cast loads in 458WM	Tatume	07/03/10 11:01 PM
Re: cast loads in 458WM	bonanza	08/11/10 03:17 AM
Re: cast loads in 458WM	mauserand9mm	08/03/10 10:30 AM
Re: cast loads in 458WM	Tatume	08/03/10 11:35 PM
Re: cast loads in 458WM	mauserand9mm	09/03/10 11:31 AM
Re: cast loads in 458WM	450_Ackley	09/03/10 04:28 PM
Re: cast loads in 458WM	Tatume	09/03/10 11:12 PM
Re: cast loads in 458WM	DarylS	10/03/10 03:26 AM
Re: cast loads in 458WM	450_Ackley	10/03/10 07:38 AM
Re: cast loads in 458WM	mauserand9mm	10/03/10 11:52 AM
Re: cast loads in 458WM	Tatume	11/03/10 12:24 AM
Re: cast loads in 458WM	DarylS	11/03/10 12:40 PM
Re: cast loads in 458WM	450	11/03/10 04:39 PM
Re: cast loads in 458WM	mauserand9mm	11/03/10 10:19 PM
Re: cast loads in 458WM	DarylS	12/03/10 01:49 AM
Re: cast loads in 458WM	mauserand9mm	12/03/10 11:29 AM
Re: cast loads in 458WM	DarylS	13/03/10 04:00 AM
Re: cast loads in 458WM	Tatume	13/03/10 06:45 AM
Re: cast loads in 458WM	gwindrider1	16/03/10 12:28 PM
Re: cast loads in 458WM	mauserand9mm	18/03/10 11:44 AM
Re: cast loads in 458WM	450_Ackley	18/03/10 07:04 PM
Re: cast loads in 458WM	450	23/03/10 08:24 PM
Re: cast loads in 458WM	DarylS	24/03/10 07:12 AM
Re: cast loads in 458WM	mauserand9mm	24/03/10 01:50 PM
Re: cast loads in 458WM	DarylS	24/03/10 11:19 PM
Re: cast loads in 458WM	mauserand9mm	25/03/10 09:58 AM
Re: cast loads in 458WM	eagle27	25/03/10 05:29 PM
Re: cast loads in 458WM	DarylS	26/03/10 01:00 AM
Re: cast loads in 458WM	greenshoots	26/03/10 06:08 AM
Re: cast loads in 458WM	86thecat	29/03/10 12:55 PM
Re: cast loads in 458WM	mauserand9mm	29/04/10 08:51 PM
Re: cast loads in 458WM	DarylS	29/04/10 10:00 PM
Re: cast loads in 458WM	mauserand9mm	14/03/10 08:43 PM
Re: cast loads in 458WM	eagle27	14/03/10 09:09 PM
Re: cast loads in 458WM	Tatume	14/03/10 10:57 PM
Re: cast loads in 458WM	DarylS	15/03/10 02:52 AM
Re: cast loads in 458WM	mauserand9mm	15/03/10 09:54 AM
Re: cast loads in 458WM	DarylS	15/03/10 10:22 AM
Re: cast loads in 458WM	9dot3x74R	15/03/10 12:19 PM
Re: cast loads in 458WM	DarylS	15/03/10 12:59 PM
Re: cast loads in 458WM	mauserand9mm	15/03/10 02:10 PM
Re: cast loads in 458WM	450_Ackley	15/03/10 06:14 PM
Re: cast loads in 458WM	450	12/03/10 04:56 PM
Re: cast loads in 458WM	DarylS	10/03/10 12:25 PM
Re: cast loads in 458WM	86thecat	10/03/10 05:18 PM
Re: cast loads in 458WM	450_Ackley	08/03/10 02:22 PM
Re: cast loads in 458WM	DarylS	08/03/10 03:25 PM
Re: cast loads in 458WM	mauserand9mm	08/03/10 06:07 PM
Re: cast loads in 458WM	450_Ackley	08/03/10 08:44 PM

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