As most of you have probably seen, Hornady is making what it calls the 6mm Advanced Rifle Cartridge. This is, in essence, the 6.5 Grendel necked down to .243.
The cartridge has been on the market since last year and seems to be doing okay given the current madness. Barrels and other components are relatively easy to come by as are reloading dies. Really the only parts not easily available are primers, powder or cases. As soon as Federal makes a Fusion load and someone like Starline starts making brass we should be all set.
One obvious source for brass is resized 6.5 Grendel although G brass isn't in abundance right now. Both Whidden and Hornady offer hydraulic form dies for the ARC for reshaping 7.62x39 although that brass isn't really super common either. Plus most AK brass is large primer which may or may not be ideal here.
I like the idea of the 6 ARC as it appears, on paper anyway, to offer a good deal of flexibility to the AR platform. It should be legal (and lethal) as a hunting cartridge and is doing fairly well in competition circles. Hornady is even making a TAP load for law enforcement although I doubt there's much interest in that realm yet. Anyway, it looks like the ARC has a bright future ahead.
https://www.americanrifleman.org/con...rnady-6mm-arc/
I recently bought a 16" Faxon barrel and have an upper put together although that's about all I've done to this point. I have a few boxes of Hornady Black but haven't shot any of it yet.
What does the hive mind think? Is the ARC the cartridge that keeps the AR viable well into the 21st Century or is it just another AR Wildcat in a market awash with oddball chamberings?
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