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

Birdhunter50
.375 member

Reged: 03/06/07
Posts: 815
Loc: Iowa,U.S.A.

Re: Anyone run into this problem?
21/04/15 10:36 PM

Benchshooter,
I had this same problem with a .577 trying to use H 4350 and IMR 4350 powders to get a nitro for black loading. I had powder that was charred to a brown/orange color and bullets driven just into the barrels 5 or 6 inches. I had hang fires, misfires, and bloopers where the bullet left the barrel but was practically rolling along the ground! I gave up on these powders because of all the associated problems and because I was afraid of getting a blown barrel or worse.

In fairness to these powders, I think that trying to get them to perform at a reduced loading density was part of the problem. Also you need to use only the hottest magnum rifle primers in loading large cases. I also think some kind of crimp on the cases is a good idea because of the lack of starting pressure and because the firing of the first barrel load could partially pull the bullet on the second load.

I was using backer rod to fill the excess space in the case but I do not think this caused any of the problems I was having. These were roughly 80 grain loads with a 650 grain hard cast bullet in front of them. 4831 also caused the same problems and both left lots of unburned powder in the barrels.

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Subject	Posted by	Posted on
Anyone run into this problem?	Benchshooter	02/04/15 05:18 AM
Re: Anyone run into this problem?	Birdhunter50	21/04/15 10:36 PM
Re: Anyone run into this problem?	albertan	21/04/15 11:21 PM
Re: Anyone run into this problem?	Benchshooter	22/04/15 05:23 AM
Re: Anyone run into this problem?	albertan	22/04/15 04:34 PM
Re: Anyone run into this problem?	Benchshooter	23/04/15 04:07 AM
Re: Anyone run into this problem?	albertan	23/04/15 07:01 AM
Re: Anyone run into this problem?	Benchshooter	01/05/15 03:16 AM
Re: Anyone run into this problem?	Ash	01/05/15 06:09 PM
Re: Anyone run into this problem?	DarylS	02/05/15 12:21 AM
Re: Anyone run into this problem?	Benchshooter	02/05/15 05:12 AM
Re: Anyone run into this problem?	chuck375	05/05/15 12:01 PM
Re: Anyone run into this problem?	albertan	07/05/15 12:32 PM
Re: Anyone run into this problem?	DarylS	08/05/15 01:33 AM
Re: Anyone run into this problem?	albertan	19/05/15 02:29 PM
Re: Anyone run into this problem?	Benchshooter	22/05/15 10:06 AM
Re: Anyone run into this problem?	Rule303	22/05/15 04:30 PM
Re: Anyone run into this problem?	DarylS	03/05/15 12:53 AM
Re: Anyone run into this problem?	Marrakai	03/05/15 10:49 AM
Re: Anyone run into this problem?	Benchshooter	04/05/15 01:53 AM
Re: Anyone run into this problem?	DarylS	02/04/15 01:51 PM
Re: Anyone run into this problem?	Benchshooter	02/04/15 09:22 PM
Re: Anyone run into this problem?	mauserand9mm	02/04/15 09:25 PM
Re: Anyone run into this problem?	DoubleD	02/04/15 11:24 PM
Re: Anyone run into this problem?	DarylS	03/04/15 01:55 AM
Re: Anyone run into this problem?	Benchshooter	03/04/15 03:00 AM
Re: Anyone run into this problem?	mauserand9mm	03/04/15 05:26 PM
Re: Anyone run into this problem?	albertan	19/04/15 11:25 PM
Re: Anyone run into this problem?	Benchshooter	21/04/15 10:00 AM
Re: Anyone run into this problem?	albertan	21/04/15 03:35 PM
Re: Anyone run into this problem?	albertan	21/04/15 04:20 PM
Re: Anyone run into this problem?	Benchshooter	21/04/15 09:01 PM
Re: Anyone run into this problem?	eagle27	21/04/15 04:59 PM
Re: Anyone run into this problem?	mauserand9mm	02/04/15 09:21 PM

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