02-24-2016, 01:26 PM
Luke, the "Speedy Gonzalez" Grendel on 6mmBR was built for Arne Brennan (who had early involvement in its development), and thus would probably have what is called a "CSS" chamber, named after Arne's former company, Competition Shooting Sports. Arne is still around online — shouldn't be too hard to contact him with a little digging — or you could give Dave Kiff a call at, oh, what's his company — PTG? — and see what he's got for long-throated 65Gs (for some reason, he was never a fan of the SAAMI compound throat, so he'd be happy to steer you to other options).
Heck, place a call to Bill Alexander, he's tried all the chambering permutations and could have some guidance for loading long in a bolt action.
Oh, and I don't know that Arne's chambering, per se, allowed him to get those velocities. He came from the competition side of things and just liked to load 'em HOT.
Heck, place a call to Bill Alexander, he's tried all the chambering permutations and could have some guidance for loading long in a bolt action.
Oh, and I don't know that Arne's chambering, per se, allowed him to get those velocities. He came from the competition side of things and just liked to load 'em HOT.
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