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Author Topic: Barrel/breechplug Thread Question?  (Read 2218 times)

Offline Chuck Burrows

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Barrel/breechplug Thread Question?
« on: April 19, 2009, 12:44:09 PM »
Can anyone please tell me what the breechplug thread size is for a Colerain 'C' Weight .54 caliber barrel? and yes I know they come breeched but I'm thinking about using a patent breech so........
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Offline LRB

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Re: Barrel/breechplug Thread Question?
« Reply #1 on: April 19, 2009, 02:23:10 PM »
  Pretty sure they are 5/8"x 18. I have pulled mine and there is just enough metal for a shoulder in the breech. Mine is a .54.
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northmn

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Re: Barrel/breechplug Thread Question?
« Reply #2 on: April 19, 2009, 06:18:25 PM »
They used to sell a colerain breech plug that was .55 inch deep for all sizes.  Most breech plugs are "square" as in 5/8 diameter by 5/8 inch length.

DP
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