Recent content by A7-NW

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    300 ultra mag load options

    I’ve been playing with the Berger EOL Elite Hunter 245s working up a load. Most accurate found so far is around 2960 with Magnum. I’ve given up on finding anymore Retumbo which was my go to powder. I haven’t hit anything but rocks with them but they pack a punch. At 1k they are still at...
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    Help needed with load development

    I would retest starting at mag length and then move in at .005 increments until you find the node. Here is my 2nd seating depth test this last weekend. 100 yards is all that is needed. You will need 3 rounds each of the same load keeping everything as consistent as possible and measuring your...
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    300 Rum barrel twist

    I had Benchmark Barrels make me a 30” bull barrel throated for 230 Berger’s for my 300 RUM and we went with a 9.5 twist.
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    8133 or retumbo

    No, I picked up a Lyman ceramic molly kit for bullets and paste for the bore. I seem to have had good luck with it. Compared to the bore of my Sako 25 06 with 1200 rounds without molly. The fire cracking comparison is night and day. Not sure if the Molly paste is filling the cracking and...
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    8133 or retumbo

    I’ve just passed 1600 rounds in my 300 RUM with a 30” Benchmark bull barrel with brake running 86.5g of Retumbo, 250 primers pushing 225 ELDM molly coated bullets and barrel at 2981. I shoot all year around from 15 to 90 degrees here in the NW and I find it to be stable throughout that temp...
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    300 RUM, 30 Nosler, 300 Norma... Which one?

    I’m at 473 rounds out of my 300 UM and just had Benchmark look at the throat. No fire cracking yet. Their Guess is 12 to 1300 rounds depending on your load. I’m using Molly, I’m not sure that that is making any difference. But a shooting buddy has over 3k out of his 300wm. He swears it is the...
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    300 RUM, 30 Nosler, 300 Norma... Which one?

    I have been shooting a custom RUM for a year now. It’s 17.5 lbs, its in a B&C stock beded, Predator action, 30” Benchmark barrel with a 9.5 twist pushing a 230 Berger at 2980. I am using an extended AI mag with a cartridge col of 3.760. At a 1000yds it is just over a .5 moa rifle if I do my...
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