I see a few members on here have loads worked up and tested with the AR-Comp powder from Alliant. I have yet to be able to find any published data from any bullet maker for this powder. Even Alliant's web site is of no help. They have info for the 224 Valkyrie but none for the Grendel. The Grendel has been around longer than the Valkyrie. Going over all of the load "stickies" seems of no help because most are too old. I did order the manual from the Build Box guys but have my doubts any data will be in there also. Reminds me of when I bought the Sierra No. 7 two years ago and it didn't even have the 204 Ruger in it. No. 7's data wasn't much different than the No. 2 I bought forty years ago.
Is the AR-Comp so new there is no data for it? If someone has a link, please post it. I hate for you guys on here that are already using it to be guinea pigs but for now I will be going off of your postings. Thanks
Is the AR-Comp so new there is no data for it? If someone has a link, please post it. I hate for you guys on here that are already using it to be guinea pigs but for now I will be going off of your postings. Thanks
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