VI Groove??

[Loy Hamilton]

barrel 1-43 SC. Any advantages to this?
Did SA make a 6 groove?

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[Jim Tarleton]

Nice photo. No advantage I know of.

Jim

[John Beard]

barrel 1-43 SC. Any advantages to this?
Did SA make a 6 groove?

Theoretically, more rifling grooves will produce better accuracy. But one rapidly reaches a point of diminishing returns.

I speculate that a 6-groove barrel will be quicker and cheaper to manufacture. 6 grooves requires the removal of less metal from the bore, but, of course, produces a bit higher back pressure during firing.

I am unaware of SA making any 6-groove barrels.

Hope this helps.

J.B.