Barnes Load Data

[choprzrul]

I'm getting some prelim research done to help my son start loading for his new Browning X Bolt in 300PRC. He is wanting to run the Barnes 175gr LRX for now. New Lapua brass, Federal 215GM primers, and RL-26.

When I look at Barnes' load data, I see them showing a max charge of 78.5gr of RL-26 at 3.525"

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When I plug those numbers into my QuickLoad, it looks like they are leaving A LOT of performance on the table. 55,000psi for the maximum load? I'm certain I'm missing something here and would really like some input.


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@LynnJr

[choprzrul]

Anyone?

[Divernhunter]

not sure if the quickload takes into account the solid construction of the Barnes bullet.
Just a guess

[JagerDog]

You gonna put your faith in tested load data or an algorithm?

Seems the velocities jive.

But every rifle is different. Start somewhere and work to your objective while monitoring. I wouldn't lock into one powder either.

Maybe talk to Barnes and see if there's a reason they stopped there and if they can tell you what pressure they obtained in their test barrel.

[AGGRO]

That's only a grain or two off other sites for max load for copper pills. It's already cookin, why test it. Ladder up and check those primers.

https://www.hornady.com/assets/site/hornady/files/load-data/300-prc-v2.pdf