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Supermag barrel tube diameter and thread pitches
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SCORPIO
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This post is pinned 1
February 2, 2025 - 4:00 pm
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I found this post I made 12 years ago.  Thought I'd repost it for informational purposes. 

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.  All measurements made at frame end of barrel.

 

CALIBER     Thread Diameter     Pitch     

357SM          .657                     32TPI          .357

375SM          .686                     32TPI          .371

41Mag          .656                     40TPI          .417

414SM          .656                     40TPI          .417

44Mag          .686                     40TPI          .426

445SM          .686                     40TPI          .426

45Colt          .688                      36TPI          .450

Anything worth doing is worth doing well.

My father

If a man designed it, and a man built it, then a man can fix it.

My grandfather

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KurtB
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February 3, 2025 - 4:36 pm
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