Talk:Benchrest shooting

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I am removing the reqimage tag, pending confirmation by RJFJR. scot 17:03, 18 January 2006 (UTC)

Looks good to me. Thanks for finding the image. RJFJR 00:41, 26 January 2006 (UTC)

[edit] Changes

Changed that the 6 PPC was a modified 7.62X39, as it is actually a .220 Russian. The .220 Russian is actually derived from the 7.62X39, but I felt it was more correct.

Depends--while Pindell and Palmisano might have started out by necking up a .220 Russian, it's still possible to make 6mm PPC straight from the 7.62x39mm cases--for example, Redding sells a 6mm PPC die set to go 7.62->6mm, but not .220->6mm: http://www.redding-reloading.com/pages/caseformdies.html It's entirely possible that the .220 Russian was chosen just because it was a target round already, and Boxer primed, small primer brass cases may have been more readily available that good brass Boxer primed 7.62x39mm cases--a very likely case back in 1975. Nowadays, it makes much more sense to start with a good brass 7.62x39mm case, which is much easier to find than .22 Russian. Of course, you can get commercial 6mm PPC-USA commercial brass these days, too... scot 20:58, 5 June 2006 (UTC)

The Remington BR series isn't exactly based on the .308 Winchester case. It's based on a purpose built, high tolerance, thin walled (for resizing ease and uniformity), case with a small rifle primer rather than the standard for the .308 Win large rifle primer.

It's a special case manufactured with extra precision, designed to be necked down and shortened without serious neck thickening issues, and with the small rifle primer pocket in place of the usual large rifle primer pocket.

Right, the BR cases are based on the Barnes .308 x 1.5, which was originally a .308 necked back to 1.5 inches, which is in turn based on a necked back .30-06, which is in turn based a .30-03 with a shorter neck. Since the the .308 Winchester is the closest (significant) commercially available cartridge, I picked that as the "parent" cartridge. You can make a BR cartridge out of .308, and while it might not be the best, it does work. Heck, if you felt like doing extra work just for the hell of it, you could make a BR case out of a .307 Winchester, but the lathe work is going to push the bounds of what a wildcatter is capable of; most don't keep a CNC lathe handy.

Since you do apparently deal with BR cartridges, do you know if anyone acutally shoots .220 Russian anymore? It seems to me the only reason anyone makes that brass is so that people can make 6mm PPC out of it. For example, the T/C custom shop lists Encore chamberings in .22 PPC, 6mm PCC, and of course 7.62 x 39mm, but no .220 Russian... scot 16:18, 24 June 2006 (UTC)