Hunting Washington Forum

Equipment & Gear => Guns and Ammo => Topic started by: Jekemi on July 06, 2010, 07:10:59 AM

Title: shortening and crowning a barrel
Post by: Jekemi on July 06, 2010, 07:10:59 AM: Everybody said, "don't do it, you need a professioinal." So that's why I did it myself. I figure, if they can do it so can I. I watched several Youtube videos and read some material on shortening and recrowning a barrel. Heck, it was the old Mosin Negant that I got for free so nothing to lose.
I built a jig to hold it horizontal and square to the saw blade. I used a 10" grinding blade in the chop saw. I slowly moved the saw through the barrel, applying a little cutting oil along the way. Plenty of sparks but no blueing as a result of heat. I ended up taking 2" off the barrel. A few strokes with a smooth file against a guide brought the cut barrel to true.
Then I used an 11 degree crowning tool with a big handle and a brass mandrel that fit into the bore. I turned it 6 or 7 times until a nice crown had formed. I finished it up with a little emery cloth, starting out with 200 grit. It looks beautiful.
The cost: $5 for the grinding disk. $22 to rent the crowning tool. $27 total. The gunsmith wanted $120.
Title: Re: shortening and crowning a barrel
Post by: NWBREW on July 06, 2010, 08:38:08 AM: :tup: Any pics....I'd like to see.
Title: Re: shortening and crowning a barrel
Post by: ICEMAN on July 06, 2010, 09:20:33 PM: :yeah:
Title: Re: shortening and crowning a barrel
Post by: yorketransport on July 06, 2010, 09:27:03 PM: Where did you rent the crowning tool from?

Andrew
Title: Re: shortening and crowning a barrel
Post by: Bscman on July 07, 2010, 05:00:39 PM: Larry Potterfield from Midway USA has a video of a "DIY cut/recrown" on Midway's website, and youtube.
Title: Re: shortening and crowning a barrel
Post by: Jekemi on July 07, 2010, 06:04:29 PM: I rented it from my friend at Microsoft, who just happened to have one. He's in Chicago but sent it to me via mail. Here's a pic of the barrel just after cutting but before the crown. I'll take a crown picture and include it next time.
Title: Re: shortening and crowning a barrel
Post by: ICEMAN on July 07, 2010, 07:49:45 PM: Too small to see! Can you resize and post it larger, about 100 to 200 kb? :drool:
Title: Re: shortening and crowning a barrel
Post by: Jekemi on July 08, 2010, 02:54:42 PM: how about this?
Title: Re: shortening and crowning a barrel
Post by: ICEMAN on July 08, 2010, 05:31:22 PM: Great size thanks.