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zipdog
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.40-65 twist rate
Mar 27th, 2008 at 4:28pm
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does anyone have any info as to the preferred twist rate for the .40-65 WCF?
  
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westerner
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Re: .40-65 twist rate
Reply #1 - Mar 27th, 2008 at 10:08pm
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I watched Ron Long win a 1000 yard long range match at Raton in 1992. He used a 40/65 with the 18 inch twist. 400 grain spitzer bullets.

I've shot match's at 800 and a 1000 yards with my 40/65  18 twist rifle.

That was a while back, but it worked fine then. The 14 and 16 may be better . Dont count the 18 twist out.    Wink

I should add that I was using duplex loads in my rifle. The velocity was 1425 fps with the 400 grain spitzer.   



                                                                            Joe.

                     
« Last Edit: Mar 28th, 2008 at 11:17am by westerner »  
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vigillinus
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Re: .40-65 twist rate for repeating rifle
Reply #2 - Apr 22nd, 2008 at 3:55pm
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Got aholt of quite a lot of PMC 40-65 ammo, 260 grain lead.   Thinking of rebarreling a 45-70 Marlin and making a short range deer rifle.  Would appreciate suggestions as to twist - 1/16 and 1/18 seem unnecessarily fast.
  
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John Boy
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Re: .40-65 twist rate
Reply #3 - Apr 22nd, 2008 at 8:23pm
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Cartridges of the World lists the 40-65 Winchester as ... 20-26
  
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frnkeore
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Re: .40-65 twist rate
Reply #4 - Apr 1st, 2015 at 2:06am
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If you don't intend to shoot anything heavier than 320 gr, a 24 twist would be fine. In looking up 40 cal twist rates in old Lyman manuals, Winchester's 40/82 used a 260 gr bullet and a 28 twist. I found no listing for 40/65.

Frank
  
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Re: .40-65 twist rate
Reply #5 - Apr 1st, 2015 at 3:37pm
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just get a 16 twist and shoot anything you want   art
  
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SSShooter
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Re: .40-65 twist rate
Reply #6 - Apr 1st, 2015 at 6:17pm
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Am happy with my 14.5" twist. Shoots just fine with bullets as heavy as 425gr.
  
Glenn - 2x CPA 44 1/2 w/22LR (Shilen ratchet-rifled & Bartlein 5R rifled), 38-40RH & 38-55WCF (Bartlein 5R rifled) & 40-65WCF (GrnMtn 'X') barrels
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Re: .40-65 twist rate
Reply #7 - Apr 3rd, 2015 at 8:49pm
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Don't consider anything slower than 16", and 14.5" is good for the longer bullets and longer ranges.

Clarence
  
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Re: .40-65 twist rate
Reply #8 - Apr 3rd, 2015 at 9:47pm
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Quote:
does anyone have any info as to the preferred twist rate for the .40-65 WCF?


CPA 32" 1:19
  
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