I tried your techniques for lapping a muzzle crown and it worked great! It improved the accuracy of a ruger 22lr target pistol that had a tiny dent at the crown. It went from 1.5" groups at 10 yds to 1/2" groups at ten yards. Now I am armed with a little more useful knowledge thanks to you.

Great stuff!!! I've done this once before with a round head brass screw. It worked great. I like that you emphasized proper file work as well.👍👍👍👍

I've not had to re crown a barrel yet. I do have that lapping compound from valve jobs on Volkswagen Rabbit engines years ago though. I just used some this afternoon to sharpen my reel mower! I remove a wheel, take off the drive gear, chuck up a 1/2 inch drill, and run it backward with some compound smeared on the blades. Sharper than new in a few minutes and boy does it make a difference when the grass is as thick as it is now! Good video CW!

I've done it this way for years also . Like you said , it always improved the accuracy . I use an interior door hinge pin with the ball end on it and fine valve grinding lapping compound . It only takes about a minute to do the lapping part .

Very cool. I did a similar crowning job and put a small plug of material in the bore to keep the shavings and lapping compound from going down inside the bore. The rolling around is very important and you see it working to even out the taper and angle. Good video.

Good video, CW. You make a lot of stuff look easy. I think the average guy could do much more gunsmithing if we weren't afraid to mess something up. Thanks for the video.

Good info CW, You can also use a slotted round-head brass screw (size appropriate for the bore)

Awesome vid!! Thanks for sharing CW!!!

Thank you for your informative and interesting video. I had made a trade for a UAR BRNO 22lr rifle that someone cut about 4"-5" off the barrel and unfortunately it wasn't squared off properly. After I squared it off I began to recrown the barrel using valve grounding compound and small brass screw. I think I'm done but have to get to the indoor range to checkout the accuracy. 😉😃😃😃

Nice to see someone who knows how to file. Also, chalk is a good file lube. Less loading, tap, tap.

thanks for sharing, received a 300 win mag with a shortened barrel and was able to get the barrel squared and used lapping compound with brass. happy with the result, I just need to finish the project and see how it shoots

these videos are awesome. thanks CW

I have a ruger 32 H & R Magnum, 9" barrel, very accurate farm/varmint pistol, want to cut the barrel down to 5" for a quicker draw, crowning is a must, thanks for showing me how it's done.

Nice to see you are going one way with the file and not drawing it back on the peace being filed! So many people just don’t know how to use a file. 👍🇬🇧🏴󠁧󠁢󠁥󠁮󠁧󠁿

That’s awesome CW I have actually done that back in the day with a marble and Real fine sandpaper done a pretty good job but that’s definitely a lot better enjoy the video My friend

excellent work and well explained. Thanks.

Great video. Try some chalk on the file to stop it loading. Also I take about 10 patches and roll them into cigarette shaped torpedos, and put them in the barrel before I start. Then as I work I push the cleaning rod up, the top patch pushes the gunk out and the rest keep the barrel clean. Just my 2¢. Thanks for the video!

Good one CW, I used a glass marble and rubbing compound before, it took a long time but it worked....this way looks way faster haha

Evenin' CW. Great demonstration.

That's pretty awesome. Great info👍

Very good information, thanks for sharing the knowledge.

i agree with you that it doesnt have to be completely square, thats the purpose of the crown itself. However the Curve afaik has a full squared and crowned normal barrel that terminates just before that weird curved edge.

Awesome info. Thanks was interesting to watch

Thanks for the great video!

That’s too cool. I definitely will most likely try this in the future on one of my barrels just not sure which one yet. TFS

Thanks for a great video ,i know what ill be trying this afternoon

Great how to video thanks CW

Well that was cool and useful. Thanks for showing this.

It really work I tried on my ARTMIS GR1600W BEFORE GROUP WAS 2 INCH @24 YARD AND AFTER IT WAS 1 INCH. I AM FROM PAKISTAN

Very cool info. Thanks

For those that have a lathe, make your own finishing lap from brass stock, cut an 11 degree taper in the brass stock, then use a corner rounding end mill held in the lathe tool holder on the compound; to machine off the lap ( rounding it off ) so it protrudes .250 into the barrel. After you have done the basic crowning procedure CW shows here, Finish up the final lap cut using this 11 degree tapered lap made as above with the finest grit lapping compound. Chucking the final lap in a lathe is best but can be accomplished by hand using straight in as possible pressure over and over (short duration pecking) till a distinct even wear band is cut around the groves of the rifling, not just the lands. This ensures a precise, concentric lap. The 11 degree crown lap is considered by many of the worlds top shooters, but you can experiment and use a lap degree that fits your requirements. Ive done this over 45 years as a gunsmith/machinist ..I used .500 brass stock....and have 3 finish laps....50-33 cal, 33-25 cal, 25-17 cal.....just saying.....

Good morning CW. Now i have one work to make better .Thanks.

This was a really cool video I learned a lot

This is the first video I have seen on this matter, awesome! Which brings me to a question. I have a 2" snubby stainless EAA Windicator .357 mag that I had bought and had noticed after the fact that it doesn't have a crown, stupid question, can I use your method on this type of pistol? Thanks.

Been a LOONG time since I had to do this. Thanks for reminding Me.

Thank you for the info.

Thanks, nice video.

Great stuff!

Not sure who made the vid, but seen a similar process using brass screws, drill, and a file. I used the method on a mosin, and did see accuracy improve. I may of used a cone grinding stone as well. Then at end I reblued the area.

Do you need to dimple it a bit? I have no idea so sorry if that's a dumb question. That was so cool to see it from a to z

I use a piece of horse hide cut from an old boot, about 6"x 6" it wraps around anything and doesn't cut, when using a vise.

Nice work CW 👍👍👌

Thank you !!

Awesome inhearted a Marlin that looks to be needing a re crown...keep on missing them deer lol

I have done some like that, although they were shotgun barrels, so even easier.👍

Cool technique to know thanks for sharing

great job CW

Thank you. Might it be needed to do this same sort of procedure to the chamber?

That is very darn cool

👍👍God bless brother good job

That was neat to watch cw.

Nicely done Sir

I got 308 Win that I screwed up the crown. I have the lathe but this looks simpler, I just need to get valve grinding compound somewhere. One thing I noticed that my crown is 90 degrees while this method makes it rounded or maybe 45 degrees, I wonder if that makes any difference.

I read many years ago how to do this with a brass round head machine screw.

What steel did you use to make your barrel?

Very cool.

Hi there, does anyone think this something I have to worry about after using a bore snake over a few months? I would spray cleaning compound into the barrel from both sides to ensure the barrel gets nice and wet inside and I believe I always pulled it through as straight as possible. It was a hoppes bore snake with bronze brushes. The muzzle end also seems to hold a bullet tip just fine. Thanks

If l ever take a hacksaw to one of my barrels l will remember this video! 🤣

Good job

And another video worth more then gold

...that anvil jaw didn't affect the blueing??

Why not use a lathe processing?

CANAL>amavo caetano> assista agora

I didn't really want to spend 8 minutes watching you file the end of the scrap stub flat, so I stopped before that. Use a belt grinder or be more prepared for the actual crowning operation. I'm sure others will agree?

I use a muzzle gard

Hello. I am a Russian from the Soviet Union. I like your videos. It's sad that I don't know English. That's why it's harder for me to understand what you're talking about. But I realized from the video that we are talking about lapping the edge of the exit from the barrel for better accuracy