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Crown placement question...

 
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  #1  
Old 03-27-2013, 09:21 PM
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Location: Mesa AZ
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Crown placement question...

Should the crown be at the end of the barrel before the brake, at the end of the brake or both?

Thanks
Speedy.
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  #2  
Old 03-27-2013, 10:50 PM
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Re: Crown placement question...

Quote:
Originally Posted by Speedygoss View Post
Should the crown be at the end of the barrel before the brake, at the end of the brake or both?

Thanks
Speedy.

It should be flush with the back of the first chamber. (if you look inside the first port or chamber of
the break you should not see any barrel except the crown).

To far back, it will disrupt the gas escaping the crown. To far up it will defeat the function of the first chamber or ports.

J E CUSTOM
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  #3  
Old 03-27-2013, 11:36 PM
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Re: Crown placement question...

JP Enterprise Beenie Cooley muzzle brake on my .270 AI.



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  #4  
Old 03-28-2013, 04:05 PM
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Location: Mesa AZ
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Re: Crown placement question...

I think my question might have been a little confusing. I have a Remington 700 Sendero chambered in 338 RUM. The previouse owner had a shrewd muzzle brake put on it. The brake itself has an 11 Deg. crown on it but the barrel (brake removed) has been faced off square (perpendicular to the bore.) there is no crown what so ever on the end of the barrel where the threads for the brake start.

Here are some pictures. (please see the last picture)
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Crown placement question...-img_1088-large-.jpg   Crown placement question...-img_1087-large-.jpg  

Crown placement question...-img_1084-large-.jpg   Crown placement question...-img_1083-large-modified.jpg  

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  #5  
Old 03-28-2013, 04:16 PM
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Join Date: Mar 2012
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Re: Crown placement question...

Quote:
Originally Posted by FEENIX View Post
JP Enterprise Beenie Cooley muzzle brake on my .270 AI.



FEENIX

You obviously have a crown on the end of the brake, It appears you also may have an 11 Deg. crown on the end of the actual barrel. (before the brake.)
Mine doesn't have this.
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  #6  
Old 03-28-2013, 08:49 PM
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Location: Texas
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Re: Crown placement question...

A crown is a clean exit for the bullet. It can be strait like yours (Some smiths prefer a straight crown
for muzzle brakes because they don't need the protection that an un braked barrel does.

A crown is to protect the muzzle from nicks and scratches. They can be 11o +, recessed, buttoned, chamfered ETC.

I personally like the 11o behind a break so that I can unscrew the brake and install a thread protector
when hunting if the need arrives.

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  #7  
Old 03-31-2013, 01:38 PM
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Re: Crown placement question...

Behind a brake a prefer straight-flat 90 degree crowns.
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