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February 29, 2020
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Does anybody know what are the threads on certain DW barrels (frame end & muzzle):
1) Large frame, 375 SuperMag barrel
2) Large frame, 357 Maximum barrel
3) Small frame, 22 long rifle barrel
Any knowlegde about these would be a great help! Also I`d like to know if the thread angle is 55 or 60 degrees? I guess it is 60, but does somebody know for sure?
May 25, 2021
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I do not have a .22 or a .375 SM , however I can furnish the following :
.357 Maximum :
Muzzle = .655 – 40 ( 60 degree )
Breech end = .655 – 40 ( 60 degree )
44 Mag :
Muzzle = .655 – 40 ( 60 degree )
Breech end = .683 – 40 ( 60 degree )
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Dans Club
March 25, 2013
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Muzzle ends of large frame and supper mags are all the same. They use the same nut. Breech ends are different for each cartridge so wrong caliber barrels won't fit.
May 25, 2021
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Does the 414 SM and 41 magnum share the same barrel ?
Does the 445 SM and the 44 magnum share the same barrel ?
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Dans Club
March 25, 2013
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Yes, the barrel is 41 caliber. It makes no difference whether it is a 41 mag or 414 SuperMag cartridge.
May 25, 2021
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February 16, 2016
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Ole Dog said
Yes, the barrel is 41 caliber. It makes no difference whether it is a 41 mag or 414 SuperMag cartridge.
Are the thread patterns the same on the frame end of both the barrels ?
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Dans Club
March 25, 2013
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They are on a 44 mag/445. I would suspect they would be on a 41 mag/414. Same caliber bullet.
February 16, 2016
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I would have checked myself, because I've got a 41, but I sold my 414 to a friend ... 
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