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300 RUM brass

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Unread 11-16-2004, 10:17 AM
Junior Member
Join Date: Jul 2004
Location: Texas
Posts: 5
300 RUM brass

How many times do you reload your 300 RUM brass?
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Unread 11-16-2004, 01:22 PM
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Join Date: Jul 2001
Posts: 1,459
Re: 300 RUM brass

Until the primer pockets are too loose to hold a primer. Not had any neck splits, etc. Just the loose primer pockets.

I usually get 6 to 8 reloads.

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Unread 11-16-2004, 05:10 PM
Silver Member
Join Date: Jun 2004
Location: PA
Posts: 139
Re: 300 RUM brass

Same here about 6 times. Primer pockets start to get loose around the 5th time. After that trash them. Ultra Mag brass is cheap I just got a 100ct from MidWay for 42$
One Shot,One Kill.
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Unread 11-20-2004, 09:27 AM
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Join Date: Jul 2002
Posts: 2,855
Re: 300 RUM brass

How is the quality of that stuff , how may would a guy have to buy to end up with 100 good fairly concentric cases ??

I'm thinking about this caliber lately
Si Vis Pacem Parabellum
Molon Labe
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Unread 11-20-2004, 11:49 AM
Silver Member
Join Date: Jun 2002
Location: NY
Posts: 394
Re: 300 RUM brass

Federal is making 300 RUM brass which is pretty good. Search the archives there is some info about it.

Frank D
"A tie is as good as a loss, and no one remembers second place."
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Unread 11-22-2004, 12:47 AM
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Join Date: Nov 2004
Location: GF Montana
Posts: 467
Re: 300 RUM brass

Is there something about the 300 RUM that makes it eat primer pockets (higher pressure, headspace?)?
A couple weeks ago all my regular sources of brass had run out of 300 RUM, - I back ordered (and just received) 500 of the 300 RUM brass.
You can prevent neck splits by annealing, but annealing the web would be disasterous (and make things worse if you didn't get a head seperation).
Can anything be done (aside from avoiding hot loads) to extend the life of 300 RUM brass?
Annealing Brass

>>how may would a guy have to buy to end up with 100 good fairly concentric cases ??

I'll be sorting mine by weight, neck thickness & runnout (after resizing). Hopefully I'll have groups that are consistent and 200 or so for plinking brass.
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Unread 11-22-2004, 11:48 AM
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Join Date: Sep 2002
Posts: 453
Re: 300 RUM brass

b1g_b0re you won't get RUM brass to last. Mine are scraped at #6 firing usually maybe 1 more load or used as a hunting load and thrown away after the shot. The RUM's work under some pressure and will eat the pockets.

Some BR guys super glue a primer in loose pockets to get one more firing from a lot of brass they really like,..but that is a bit extreme (even for me).
You try to get closer to the target,..and I keep trying to get further away.
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