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

DarylS
.700 member

Reged: 10/08/05
Posts: 26942
Loc: Beautiful British Columbia, Ca...

Re: cast loads in 458WM
12/03/10 01:49 AM

Mauser - not sure about that - moving the bullet forward in a .458, along with the powder charge, to where the bullet lodges in the throat while ignition pauses, might be a chore for a primer - any primer.

This does happen in the .22 Hornet, though, and is why a lot of Hornet's give better accuracy with pistol primers. The 'softer' impluse is more prone to leave the bulelt in the case. With Hornet's, it isn't a case of poor igntion, it's a case of the primer being too violent for the thin case's hold on the bullet, and the lightweight charge not being enough to absorb the impact of the primer's ignition. In the Hornet, we reduced SD's to the teens, and improved accuracy 3 fold, just by using the Lee Crimp die. My CZ Hornet is now among the most accurate rifle's I've shot - frequently turning in 1/4", 5 shot groups at 100 meters. the pimers and priming did the trick. With the .458's I've used, a CCI250, Rem 9 1/2 Mag or Fed 215 primers have all given good results with jacketed and cast - along with crimping. the stronger powders are needed with the slower powders, not so with pistol or shotgun powders and may be detrimental with the fast, easy to ignite powders.

With the big straight and lightly necked cases, there is a lot of room & if not filled when using hard to ignite powders, the primer's force can push the powder to the front of the case, packing it against the bullet, where it sits until the ignition manifests itself, thus the hangfire. I seriously doubt the primer can move a heavy bullet from it's seat in the front of the case.

--------------------
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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