recrowning a shotgun barrel,

[silas oberhauser]

i have a remington rifled 20g slug barrel with cantaliever scope mount. from the factory it had a bad crown, i had a local machinist try to crown it but it didnt turn out. anyone on here re crown barrels?

[SuperBlazingSabots]

Hello Silas, I would try some lapping compound or Bore Bright on the wad and fire some slugs, before I'd do any thing!
That's me!

Best regards,
Ajay
BlazingSabots@Gmail.com
Blazing Sabots, LLC
www.facebook.com/BlazingSabots?ref=hl

[silas oberhauser]

the barrel its self is fine, im not new to guns and some gun smithing lol. the crown was lopsided.

[longbow]

Not sure what sort of tools you have accessible but if you have or have access to a lathe, you can make up a "pin" to suit the bore with a slip fit and a shoulder on it then use machinist's blue or something else on the muzzle, slide the pin in and rotate a bit to rub and remove the surface coating, file/stone down the high spots until you have as close to flat as you can get. you could use a similar idea to lap the muzzle to dead flat after but you would want a fixed pin and separate lap with slip fit to the pin.

After flattening you want to break the sharp edge ever so slightly with a stone or very fine emery cloth.

While maybe a bit crude, I have done it and it worked for me.

Alternately and maybe better you can buy tools:

http://www.brownells.com/items/barre...ning-tool.aspx

http://www.brownells.com/gunsmith-to...prod18305.aspx

http://www.borkatools.com/pages/mcrt/muzzlecrown.html

Not sure of all available sizes but...

Just another option.

Longbow