Bought a fantastic home gunsmithing book for amateurs

[badshah0522]

Hi!

Are there topic on crowning & Re-crowning in that book..As a friend of mine recently damaged his baretta barrel from crown side as he was trying to ***********(deleted) ,he was cutting threads on the tip & accidently leath damaged the crowning,resulting the weapon is not firing straight.

If there are topic regarding this plz scan it and send me on my mail.

Thanx

[Any device to suppress the muzzle flash or sound of a firearm is prohibited in India-penpusher]

[Mark]

Easy job.

Just have him chuck up the barrel again, make a facing cut to clear up all the damaged area, then make a light 45 degree chamfering cut on the inside and outside.

To do it by hand- put 1 wrap of masking tape on the end of the barrel and with a fine tipped pen draw an exact line around the circumference. Now file down to the line. To put a crown on it, get an old computer mouse ball and peel off the rubber. Use the steel ball with some automotive valve lapping compound and a lot of elbow grease. The geometry works out that you will get an 11 degree crown, which is currently a favorite on target rifles here. You also have to keep checking to make sure you grind it evenly.

[Mark]

I just noticed that someone is selling "The Modern Gunsmith" on CD now for less than $20. Gentlemen, if you are at all interested in gunsmithing this book is quite the standard to refer to!

I found it on ebay, but it might be elsewhere as well.

[badshah0522]

Thanks Mark ,
Actually some one else also suggested the same idea,i have already treid it and the pistol is firing 90% accurate now.Soon we will rectify the rest of the problem.
Thanks,
badshah

Easy job.

Just have him chuck up the barrel again, make a facing cut to clear up all the damaged area, then make a light 45 degree chamfering cut on the inside and outside.

To do it by hand- put 1 wrap of masking tape on the end of the barrel and with a fine tipped pen draw an exact line around the circumference. Now file down to the line. To put a crown on it, get an old computer mouse ball and peel off the rubber. Use the steel ball with some automotive valve lapping compound and a lot of elbow grease. The geometry works out that you will get an 11 degree crown, which is currently a favorite on target rifles here. You also have to keep checking to make sure you grind it evenly.