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30-378 case life

 
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  #1  
Old 06-19-2002, 08:56 PM
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30-378 case life

My new, custom 30-378 Weatherby arrived today.

How many times can you load your 30-378 brass?
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  #2  
Old 06-19-2002, 10:41 PM
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Re: 30-378 case life

Hi Len.

I'd hope they'd last just as long as the 416Wby would. Interested here too, I have a friend with a 28" Pacnor barrel in 30-378 I'm still thinking of buying.

Chris has never said anything about short case life. I'll ask him what he gets on average.
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  #3  
Old 06-23-2002, 04:38 PM
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Re: 30-378 case life

5-6 if you push it at all and then you need to anneal.... I've not been beyond that but primer pockets are starting to get loose so you won't go much farther anyway.

But then you could "baby it" but then it wouldn't really be a 30-378, would it?

Of course you're throat will be toast after about 500-700 rounds anyway.....

Certainly not a high volume cartridge....

$bob$
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Old 06-23-2002, 05:21 PM
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Re: 30-378 case life

Hello Len

Bob is correct. I have seen 30/378 rifles shot out in 600 rounds and LESS. Stay away from 5010 powder in it as the large sticks are real barrel eaters.

I always loaded hot in my ultra longrange guns for PA or Colorado. I didn't care if I had primer pocket expansion as I was on a elk or deer hunt. If I only fired them one or two times it was a hunt and it was part of the cost. 20, 30, or 40 cases really don't mean much during a successful deer or elk hunt in two or three States.

I presume your going after elk or deer with this rifle? If you load them down you will get 5 or 6 loadings. Load them hot and probably 2 or 3 times, if that.

As Bob said, it wouldn't be a 30/378 if you don't load them hot. You can match the 30/378 velocity in any improved 300 Weatherby case (barrel lengths being the same) if the 30/378 is loaded near max but, NOT max. The 308 Baer, 30 Goodling, 300 Ackley IMP, 308 DC Super IMP are prime examples.

Later and good shooting.
DC
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Old 06-23-2002, 06:48 PM
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Re: 30-378 case life

Preliminary results are about 3150 for the 240 grain MK in my 30 inch barrel. Very slight ejector marks. 114 grains of H50BMG. I may back off about 50 fps. We'll see.
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Old 06-23-2002, 10:37 PM
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Re: 30-378 case life

Darryl,

How bad is the 5010 burning throats compared to say H50BMG or similar? I'm finding it to be one that my 7RUM really likes. Plus, at $4 per pound from Jeff Bartlett, it's tough to beat price-wise..... [img]images/icons/confused.gif[/img]

[ 06-23-2002: Message edited by: speedbump ]
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  #7  
Old 06-23-2002, 11:12 PM
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Re: 30-378 case life

Hello

5010 and 50BMG are the same family of powder.
I don't use it any longer because of what I saw it do to throats in large overbore cartridges such as 30/378. The 7mmRUM, 7/300 Weatherby, 7STW or any large 7mm would also fall into that catagory because of the smaller bore diameter.
The price is such possibly for that reason?
DC
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