5 Groove barrel?

[Calif-Steve]

A H.S. made barrel is a High Standard barrel, it is a 4 groove barrel. Are you certain it is a HS barrel?

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[JasonA]

A H.S. made barrel is a High Standard barrel, it is a 4 groove barrel. Are you certain it is a HS barrel?

I'll recheck, but the barrel is stamped H. S. with no date of manufacture. It has the usual flaming bomb ordinance stamp and the patch had carbon fouling in a 5 pointed, equidistant star pattern. My '03 barrel patches don't look like that. I was confused. Could it be an original barrel from 1918 or 19 that was incompleted and high standard installed it and stamped it??? Just a thought. I will photograph the barrel and patch later this week. I teach and coach football and it is a little busy right now.