Many Highpower shooters use IMR 4895, Hogden 4895, Hogden Varget, or Alliant RL-15. People like H335 in bolt guns, but you said AR-15. There are two suitable Vihtavuori powders but I do not recall their numbers right now - check http://www.vihtavuori-lapua.com" onclick="window.open(this.href);return false; to see.
I used Varget for years, could not get more, switched to Reloder 15 (yes, that's how they mis-spell it), and could not be happier. It meters better than Varget, burns clean, and prints great (better than I can hold).
This is for 52 grain and 69 grain Sierras, and 80 grain Noslers.
Hope this helps.
Regards,
Andrew
AR-15 powder recommendation
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Re: AR-15 powder recommendation
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Re: AR-15 powder recommendation
I've used IMR4895 in the past, but am currently using WW748 & plan to try Varget.
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Re: AR-15 powder recommendation
Varget works well but I prefer BL-(C)2 as it fits more in in a case.
My Varget loads are limited by case volume normally.
My Varget loads are limited by case volume normally.
Walther PPS 9mm
Re: AR-15 powder recommendation
I believe it is Hogdon H322 that my brother has been using. I get my best groups with those loads. I think Varget is what he normally uses for rifles.
Re: AR-15 powder recommendation
If ease of metering is also a concern BLC2, 2230, 2460 all meter the best that I have found. However, I use Varget and RL15 for my competition loads but have to spend a lot of time metering the large stick powder. I use Varget and RL15 because they are less temperature sensitive since I am loading over the max published load. But, all my 55grain plinking loads are AA2460 with 55gr.