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Lead Pot
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Re: Shiloh 40-70 barrel groove diameter ?
Reply #15 - Apr 9th, 2026 at 10:00am
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Yes Mr. Bullshop, If was to order some of your .50 caliber bullets for my .50-2.5 sharps I would ask for a .496" diameter. Cheesy
Yes those transitions are not the normal for now days chambers, but they work very well. Cheesy

Kurt
  
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gnoahhh
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Re: Shiloh 40-70 barrel groove diameter ?
Reply #16 - Apr 9th, 2026 at 10:12am
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I have an odd duck of a .40 barrel. It's on a Ballard #4 Perfection, 4 weight +, not marked so don't know origins but it's old and with a minty bore. Groove diameter is .415", bore diameter .406" (confirmed via slugging and chamber cast). 

Waiting on a custom mold from Accurate, every mold I own or have access to is much too small for this weirdo.
  
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bullshop
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Re: Shiloh 40-70 barrel groove diameter ?
Reply #17 - Apr 9th, 2026 at 10:54am
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After reading all the answers to my question here I will just have to tell him as I usually do that I cant tell you what you need you must tell me.
  
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