280AI Berger 7mm 175gr Elite Hunter bullet load.

204_ruger

Lil-Rokslider
Joined
Apr 24, 2020
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165
I have a Browning Xbolt 280AI 1@8 26-inch barrel rifle. I got my hands on some Berger 175gr. I have the following powders.
V N160 N550 N560 .
IMR 7828SSC 4831 4350
H4831SC H1000
RL19 22
Magnum
 
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The data provided seems to have some pretty stout max charges. Work up for sure! I’ve only used RL23 and RL26 with 280AI and 175’s.
With the powders you have, I would try N560, 7828SSC, H1000, or RS magnum first and in that order.
 
I shot the top group with H4831sc and Berger 175gr Elite Hunter. And the bottom group with RL19 and a 162gr eld x. Top group was 4 shot. Bottom was 3 shot. 2940 fps on the 175gr grain.
 

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If you don’t have pressure signs, and if the ES was low, I think you found your load.
I thought my max was 59.5 H4831sc with a 175gr. I went up to 60 gr and shot that group . It was 93 out. But my max is 58.5. So I'm 1.5 grains over max. No issue no heavy bolt lift. Or any marks on brass. I guess I will rework the load. And drop down to 56 work up to 58.5 grains.
 
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