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identifying rate of twist
- Thread starter Keith T
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wattlebuster
69 Cal.
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The rate of twist should be on the bottom of the barrel. Or at least they are on my Rice barrels so i would think they are on grn mt barrels. :grin:
Put a well lubricated patch on a cleaning jag and push it into the barrel so that the whole rod rotates with the twist. When seated at the breech, mark the cleaning rod at the muzzle and put a small register mark on the rod opposite the front sight. Pull the rod out until the register mark faces the bottom flat... exactly 1/2 turn, and then measure the length of the rod from the first mark to the muzzle. If its a 1 in 48 twist, you should have 24". Since most modern barrels are fairly uniform, this doesn't have to be exact...
If we are speaking of a muzzleloading barrel, Green Mountain has not changed the twist rate for years. The twist rate will depend on the caliber of the barrel.
Follow this link to see these twist rates and the sizes of barrels available in each caliber.
http://www.trackofthewolf.com/Categories/TableList.aspx?catID=14&subID=142&styleID=497
Follow this link to see these twist rates and the sizes of barrels available in each caliber.
http://www.trackofthewolf.com/Categories/TableList.aspx?catID=14&subID=142&styleID=497
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Paul V. does a great job of explaining how to measure twist rate,,it's found in the arcticles and how too section of this forum,, :grin:
http://www.muzzleloadingforum.com/fusionbb/showtopic.php?tid/239243/
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This is a 54 caliber made some years ago by whoever crafted guns for Golden Age Arms. I'm sure it is barrel made for round balls.
Looking on Tracks site, it says 1:70.
I'm also seeing this:
"Our ”˜C' profile large caliber Golden Age barrel has a 1.062" breech, .812" waist, .875" muzzle."
I'm wondering if this "Golden Age" refers to the same Golden Age Arms I received my rifle from?
Looking on Tracks site, it says 1:70.
I'm also seeing this:
"Our ”˜C' profile large caliber Golden Age barrel has a 1.062" breech, .812" waist, .875" muzzle."
I'm wondering if this "Golden Age" refers to the same Golden Age Arms I received my rifle from?
My 1994 Golden Age catalog shows the .54 cal. Green Mountain barrel with a 1:70 twist.
The .54 cal. Colerain barrel was a 1:56 twist
The .54 cal. Colerain barrel was a 1:56 twist
Keith T said:
Nope, that's just a name Colerain placed on one of their styled "swamped" barrels.
Your barrel is either a straight or swamped :grin:
