Temp stable .270 wsm powder

Buddro

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Dec 10, 2018
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New mexico
I'm looking for powders to start load development on a short barreled .270 wsm with 140 berger classic hunters. (I don't know how short the barrel is gunna be yet, I plan to chronograph it at 26 inches and decide how much I am willing to lose from there). I can find some load data that should work for h1000 which will be a good starting place being as it shoots well from my 7 mag but H1000 is in short supply right now. I have lists of load data I just don't know adam from eve when it comes to powders. I am looking for temp stability first and velocity second. Im seeing re 26, aa magpro, ramshot, n560, 7828 ssc. Any ideas which powders I should be looking for?
 

LVJ76

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Feb 2, 2019
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Tucson, Arizona
Agreed RL23 and also IMR-7977 Enduron, provably end up arpund 3,100 fps. H4831sc but will run with a little less speed.

Stay safe
 

Buddro

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Dec 10, 2018
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83
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New mexico
I bought 2 pounds of re 23 just the other day for my brothers 300 win. He was saying people are finding the h1000 to be quite a bit less sensitive than the re 23 and he wants to hold out for h1000, maybe I'll just keep it and try it for myself.
 

djfergus

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Dec 25, 2015
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H1000 is probably going to be your best option for temp stability. I've ran both RL 26& h1000. I favor RL 26 but I don't hunt in warm temps. If I did, I would favor retumbo or H1000 for that cartridge. H4350 would probably be a touch more stable that H1000 but it would be a bit slower in velocity.
 

JMW67

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Dec 6, 2012
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TEXAS
If you are looking for temp stability RL 22 will not be it great powder though used it for years
 

Muddyboots

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Feb 7, 2013
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Michigan
RL22 is ok as long as you have data points at the temp you are shooting AND as long as it is not too warm out. I shoot RL22 in cold temps and accuracy, ES and SD is pretty good in a 300WM with 200AB.
 

Buddro

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Dec 10, 2018
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83
Location
New mexico
Yeah I was thinking I had re 23 not 22. The 22 will go to some purpose other than the hunting rifle. make target practice rounds probly
 

gunaddict

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Apr 18, 2010
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736
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Oregon
I am shooting a max load of RL26 with the 140 Berger Classic hunter. 26 inch barrel. Look up the load data in the Berger Reloading manual. Shoots awesome.
 

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