Polygonal rifled barrels and monometal bullets????

[4mesh063]

Also, it was way small too. In don't remember exactly how far but it sticks in my mind the minor ID of the rifling on the one I did was .2988 or something like that. I thought something was wrong at first.

[Nighthawk]

If they were that inaccurate I don't think that HK would use it in the PSG1, SOCOM pistols and I don't think Tactical Ordinance would use it in there sniper rifles.

[Mikecr]

Are there any standards w/regard to polygonal rifling? Male, female, rounded lands, flats, octagonal, 6flats, tight, loose, hammered, puttoned, for handguns, for rifles?
I have a Schneider poly(buttoned) that looks as described above, like std 6 lands, only with rounded edges. Gary told me that it would measure the same internal dimensions as any other barrel. I haven't used it yet(bought it for an experiment).
Now, when I was looking around for one, an interesting observation was that ; any maker who offered one, claimed to be the only maker to ever offer them! Like they fail to recognize another makers rifling as polygonal, by their definition.
All I know is that it doesn't look like the rifling in a glock. I can find no other pictures of polygonal.