H4350 to RL22?

Barrelnut

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Dec 16, 2013
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4,357
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End of the Oregon Trail
If you are having high ES, my first thought is that the chosen powder is not providing good case fill. I would think a bulkier, slower burn rate powder would be best. Thinks like H4350 and RL17 work well in WSM cartridges (short and fat).
I would think RL22, 23, 33, H1000, even Retumbo might work. I use Rl22 in 25-06 and 7 mag with good success.
 

can1010

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Feb 27, 2012
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760
RL17 is pretty dense and will have less case fill so you might not crunch powder. if h4350 is 100% fill RL17 will be 96%
 

John McLaughlin

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Sep 29, 2018
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37
Location
Toledo OH
You also could use a plaster vibrator (hobby shops have them for getting rid of bubbles in plaster) these will settle a full case of powder down to below the shoulder depending on grain size and length and get you the densest powder column mitigating powder crunching considerably. JM
 

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