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.357 round barrel outside diameter at the muzzle
.357 round barrel outside diameter at the muzzle
Will someone with a round barrel .357 please measure the outside barrel diameter at the muzzle? I need this to make a sight estimate.
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NRA Benefactor, USCG '63-'67, GM-3, Fifth District
- markiver54
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Re: .357 round barrel outside diameter at the muzzle
I have a BBS 357 ( round barrel ).
In standard measure it is 41/64th's at the muzzle. Hope that helps. I used a Starrett caliper.
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I'm your Huckleberry
Re: .357 round barrel outside diameter at the muzzle
Thank you. I have the CCH .357 with the octagon barrel and I want to see how much higher my front sight is compared to a round barrel. I'll post my octagon barrel muzzle size when I get home.
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NRA Benefactor, USCG '63-'67, GM-3, Fifth District
- markiver54
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Re: .357 round barrel outside diameter at the muzzle
you're quite welcome Mark, and please do. Now I too am curious.
If it helps, bottom of barrel to top of blade, is exactly 1+1/8 inch.
If it helps, bottom of barrel to top of blade, is exactly 1+1/8 inch.
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I'm your Huckleberry
Re: .357 round barrel outside diameter at the muzzle
Good info. I'll post that measurement also.
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NRA Benefactor, USCG '63-'67, GM-3, Fifth District
Re: .357 round barrel outside diameter at the muzzle
Your sight is about 0.484" above the barrel (1 1/8" - 41/64" = 31/64" = 0.483") and about 0.8125" above the bore centerline (1 1/8" - 20/64" = 52/64" = 0.8125")
Last edited by MarkB on Mon Jan 20, 2020 4:52 pm, edited 1 time in total.
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NRA Benefactor, USCG '63-'67, GM-3, Fifth District
- markiver54
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Re: .357 round barrel outside diameter at the muzzle
Thanks for doing the math Mark!
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I'm your Huckleberry
Re: .357 round barrel outside diameter at the muzzle
Here are my measurements for the CCH .357 octagon carbine barrel.
Barrel diameter across the flats = 0.826"'
Top of front sight to bottom flat of barrel = 1.231"
My front sight is 0.405" above the barrel and 0.818" above the bore center.
markiver54, your round barrel measured 0.641" in diameter, 1.125" top of sight to bottom of barrel and 0.8125" above the bore center.
So, my octagon barrel front sight is only about 0.005" taller than your sight.
I have mounted a Skinner express rear sight on my CCH. It is taller than the stock sights. I've ordered a Ranger Point Precision Henry front sight listed with a 0.565" height. I'll receive it tomorrow and see how it fits.
Barrel diameter across the flats = 0.826"'
Top of front sight to bottom flat of barrel = 1.231"
My front sight is 0.405" above the barrel and 0.818" above the bore center.
markiver54, your round barrel measured 0.641" in diameter, 1.125" top of sight to bottom of barrel and 0.8125" above the bore center.
So, my octagon barrel front sight is only about 0.005" taller than your sight.
I have mounted a Skinner express rear sight on my CCH. It is taller than the stock sights. I've ordered a Ranger Point Precision Henry front sight listed with a 0.565" height. I'll receive it tomorrow and see how it fits.
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NRA Benefactor, USCG '63-'67, GM-3, Fifth District
- markiver54
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- Joined: Sun Nov 04, 2018 11:49 am
- Location: Biue Ridge Mountains, NC
Re: .357 round barrel outside diameter at the muzzle
Thanks for the info Mark. Seems close enough that you should be able to adjust for the slight difference.
Rear adjustment should allow compensation easily, I would think.
Rear adjustment should allow compensation easily, I would think.
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I'm your Huckleberry