Supermag barrel tube diameter and thread pitches Reloading, Gunsmithing and Grip Making Forum Dan Wesson Forum

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Supermag barrel tube diameter and thread pitches

SCORPIO

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February 2, 2025 - 4:00 pm

I found this post I made 12 years ago.Â Thought I'd repost it for informational purposes.Â

Its raining here today so I got out my Craftsman thread pitch gage and my Frankford Arsenal digital calipers and decided to do some measuring of the large and supermag barrels. I'll post my results below.Â All measurements made at frame end of barrel.

CALIBERÂ Â Â Â Thread DiameterÂ Â Â Â PitchÂ Â Â

357SMÂ Â Â Â Â Â Â Â Â .657Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â 32TPIÂ Â Â Â Â Â Â Â Â .357

375SMÂ Â Â Â Â Â Â Â Â .686Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â 32TPIÂ Â Â Â Â Â Â Â Â .371

41MagÂ Â Â Â Â Â Â Â Â .656Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â 40TPIÂ Â Â Â Â Â Â Â Â .417

414SMÂ Â Â Â Â Â Â Â Â .656Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â 40TPIÂ Â Â Â Â Â Â Â Â .417

44MagÂ Â Â Â Â Â Â Â Â .686Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â 40TPIÂ Â Â Â Â Â Â Â Â .426

445SMÂ Â Â Â Â Â Â Â Â .686Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â 40TPIÂ Â Â Â Â Â Â Â Â .426

45ColtÂ Â Â Â Â Â Â Â Â Â .688Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â 36TPIÂ Â Â Â Â Â Â Â Â .450

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KurtB

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February 3, 2025 - 4:36 pm

Thanks Scorpio, thatâs great information!!

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