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R26 data for 150's in the 270 Win look very good.
How would you load R26 for the 280?
I would think to use starting point data for the 270 and work up?
Seems logical.....but
Maker of the Frankenstud Sling Keeper
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Campfire Kahuna
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Campfire Kahuna
Joined: Jul 2001
Posts: 60,086 |
Yep.
In general, I've found .280's will take about the same powder charge as .270's with bullets weighing 10 more grains. In other words, if the .270 will handle 60 grains of H4831 with 130's (average in most loading manuals) then a .280 will handle 60/4831 with 140's. Though of course that somewhat depends on the particular bullets.
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John Steinbeck
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Campfire Ranger
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Campfire Ranger
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Tedthorn ,
You are referring to a 280"AI" right ?
PRESIDENT TRUMP 2024/2028 !!!!!!!!!!
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Campfire Outfitter
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As the title says.....280AI
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Campfire Ranger
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Campfire Ranger
Joined: Mar 2006
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I have some RL 26 to try in my 280 AI but N165 shoots so good I haven't been nudged to change.
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Robert E. Lee
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Campfire 'Bwana
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Campfire 'Bwana
Joined: Jun 2006
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I just went through the same exercise with two 280 AIs and 150s (Scenar-Ls) and ended up with 7828 as the best powder for both.
A wise man is frequently humbled.
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Campfire Outfitter
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OP
Campfire Outfitter
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What velocity did you get with 7828?
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Campfire 'Bwana
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Campfire 'Bwana
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Higher than I expected, I got 3100 fps with 62 grains and a 24" barrel, and Nosler's data tops out at 3100 with 63 grains and a 26" barrel. I backed down to 60.5 grains for best accuracy, getting 3025 fps there.
A wise man is frequently humbled.
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Campfire Outfitter
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Not bad at all
I'll look for a pound this weekend
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