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Normal Topic 40-65 Winchester. (Read 3974 times)
FITZ-G
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40-65 Winchester.
Mar 6th, 2017 at 9:16pm
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Does anyone here have a Bore and Groove Diameter for 40-65
Winchester. Have found a statement in the Winchester book
Bore .400. No info on Groove diameter or Twist. Any information would be appreciated. Groove Diameter and Twist
and source. Thanks in advance for your help. Regards, FITZ-G Smiley
  
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SgtDog0311
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Re: 40-65 Winchester.
Reply #1 - Mar 6th, 2017 at 9:39pm
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I've got three
Cody Ballard .408/400 
Relined Marlin Ballard .408/400 TJ Liner
Both 16 twist.   Some are ordering them faster nowadays.
Marlin 1895 1898 vintage .4085/.4025; 20" twist
  
Best Regards,
John
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Cat_Whisperer
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Re: 40-65 Winchester.
Reply #2 - Mar 7th, 2017 at 10:20am
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Schuetzendave wrote on Mar 7th, 2017 at 9:46am:
The Modern 40 caliber rifles have a .400 bore and .408 groove-to-groove. 
...


agree, sort of.  .405 Winchester tends to be slightly larger.
  
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texasmac
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Re: 40-65 Winchester.
Reply #3 - Mar 7th, 2017 at 10:37pm
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Cat_Whisperer wrote on Mar 7th, 2017 at 10:20am:
Schuetzendave wrote on Mar 7th, 2017 at 9:46am:
The Modern 40 caliber rifles have a .400 bore and .408 groove-to-groove. 
...


agree, sort of.  .405 Winchester tends to be slightly larger.


FWIW, the Miroku Browning .40-65's average 0.400" bore & 0.409" groove, and I've measured a bunch.  None were under 0.409".

Wayne
  
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SSShooter
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Re: 40-65 Winchester.
Reply #4 - Mar 9th, 2017 at 6:53am
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The Miroku's are generally excellent shooters. However, so is my 0.400" x 0.408" Green Mountain barrel with a 14.5" twist. While 16" seems to be the 'default twist' from Shiloh and C. Sharps these days, as is the Miroku, IMO, one can never go wrong with the faster twist. Especially if shooting heavier/longer (>420gr, or so) bullets at distances of greater than 200yd in your future.
  
Glenn - Stevens 044 1/2, Bartlein SS 5R barrel in 22LR
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rfd
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Re: 40-65 Winchester.
Reply #5 - Sep 19th, 2017 at 6:20am
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pedersoli '74 sharps .40-65 is .408 x .400

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