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jhm
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What twist do I need?
May 5th, 2024 at 11:39am
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Contemplating a 38 Ballard XL build but don't know what twist I will need for 158 to 200 grain bullets. Any suggestions?


JMH
  
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marlinguy
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Ballards may be weaker,
but they sure are neater!

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Re: What twist do I need?
Reply #1 - May 5th, 2024 at 12:00pm
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The originals were a very slow 1:36" twist, but I'd go for a 1:16" or something close if doing one today. Originals were also a fairly large diameter heeled bullet so groove diameters were around .375". Today I'd make it a .357" groove to be able to use more common sized bullets that aren't heeled.
  
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frnkeore
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Re: What twist do I need?
Reply #2 - May 5th, 2024 at 12:06pm
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20 is all you need. My LW is a rebored original barrel in 20 twist and it shoots the 35875 & 358315, both 208 grain, w/o any tipping. But, I think you'll find most std blanks will be 18 twist.

The 38 XL and 357 Max, are excellent all round cartridges. If I had just one rifle for target and hunting, that would be it.
  
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Skalkaho
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Re: What twist do I need?
Reply #3 - May 6th, 2024 at 5:03pm
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Did a 1-18  shot a 205 and 225  excellent,made A difference on felt recoil for OH............
  
May the Bullet Gods be with you.......
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Schuetzendave
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Re: What twist do I need?
Reply #4 - May 7th, 2024 at 10:11am
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I won a 18:1 .38 barrel which I mounted on a Rolling Block.
It would shoot a 310 grain bullet and knock the Rams down at 550 yards with a light recoil using Swiss FFFg black powder.
  
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