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Reloading Berger Bullets


Newbie and 300 RUM

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Unread 04-30-2007, 12:40 PM
Bronze Member
Join Date: Mar 2006
Posts: 33
Newbie and 300 RUM

Alright, new to this game, have a 300 RUM. Stock has been bedded, trigger work done. Scope is mounted. Final Finish was completed last weekend, and I have put a brake on it. I have just bought a bunch of reloading equipment and chrono. I have searched back a ways and gotten a load of load information. Where do I start? What do I look for? Thanks in advance.

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Unread 04-30-2007, 02:02 PM
Silver Member
Join Date: Dec 2006
Posts: 222
Re: Newbie and 300 RUM

H1000 or Retumbo powder, large rifle magnum primers, 180-200 gr. Premium bullets ie.Swift Scirocco's and Nosler Partitions, and Nosler Accubond come to mind. My gun did not like the Partitions for some reason and the only other one I tried personally in this size bullet(180gr)were the Accubonds. Goto Hodgdon.com for load information, that is what I used. I settled on 180gr. Accubonds with Retumbo powder.

There are several others here that will hopefully chime in with more extensive testing than I have done on the 300RUM. If I can say one thing is that my factory rifle took about 60 rounds through it before it really settled down and shot decent groups. Good luck
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Unread 04-30-2007, 08:33 PM
Platinum Member
Join Date: Jul 2005
Posts: 1,651
Re: Newbie and 300 RUM

400BullElk, look at this site for load data;


It has a lot of good info for the 300-RUM with many different powders, bullets, and primers being used. It's a good place to get started.

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Unread 04-30-2007, 11:25 PM
Gold Member
Join Date: Jul 2006
Location: AB, Canada
Posts: 556
Re: Newbie and 300 RUM

hi, just follow their advice.
I was like you one year ago, and for my 300rum, I found the perfect powder with Retumbo.
91gr Retumbo, 9 1/2m rem primer, 200ab round, and 3.607aol.
never exceed the maximum load for your rifle.
tge best powder to start are Retumbo / h1000, because are not sensitive to temperature variation.
- read, read, and ask, than do something stupid and regret later.
- look for pressure signs; hard or unusual presure when lift up the bolt, primer loose, case crack, or stuck in the rifle, or bolt marks imprint on the case base.
you have to options to fin the perfect comb for your riflr;
1. ladder test
or 2. the old fashion way- load 3-5loads for every 0.5gr increment powder starting with min load and go up to the first sign of pressure.
you have to choose the tightest group,and repeat for confirmation.
My 338Edge
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Unread 05-02-2007, 01:23 AM
Silver Member
Join Date: Jun 2006
Location: Memphis, TN. Soon to be Casper, WY.
Posts: 494
Re: Newbie and 300 RUM

I have settled on 96 grains of Retumbo with Fed 215 primer and the Berger 210 VLD bullet. According to the primer this is not close to a max load in my rifle. There is still a substantial curve at the edges of the primer. No sticky bolt lift or any marks on the brass.
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Unread 05-02-2007, 10:16 AM
Silver Member
Join Date: May 2006
Location: Sacramento, Ca
Posts: 106
Re: Newbie and 300 RUM

I also use 96g of Retumbo but I shoot 180g Barnes TSX.. Ran a few tests this past weekend all were around 3415 fps so that's what I'm runnin!. Which means I backed down half a grain from my previous loads. GM 215 primers...
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Unread 05-03-2007, 08:11 PM
Bronze Member
Join Date: Oct 2006
Location: South Jordan, Utah
Posts: 73
Re: Newbie and 300 RUM

I worked up to 100 grains of retumbo with a 180gr bullet and it shot like a dream.
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