Home Forums Hunting & Shooting Long Range Hunting Any of you recrown your own barrels?

Was shooting CTR at 250 yards from solid field rest and had two hit within an inch, but third was 2+ inches away.

At first I thought caffeine jitters but had good press, etc. I looked the rifle over and saw a tiny chip on edge of rifling; so much for trusting the toe of a muck boot on the floorboard!

Should I just try a round brass screw or mil surplus 7mm FMJ and lapping compound or get a Manson crowning tool. Trying to avoid expensive gunsmith trip with this "peasant rifle."

The holes in the steel are from a BIL who didn't understand that Failsafes weren't Softpoints a few years back.
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Brass screw and lapping compound here.. by accuracy, it has worked pretty well for me.

I use either my Lathe or the Manson Crowning Tool and wouldn't think of crowning my rifles with a brass screw .

Gonna check Brownells now. Thanks bea and Rancho!

The lathe will produce the best crown. Not a very expensive job either.

Not so sure the lathe will beat the Manson Carbide Crowning tool , they both are running about equal in my opinion.

The brass screw worked for me on a used hunting rifle I bought.

I have the Manson crowning kit. I cut a fresh crown on all new or used factory rifles I acquire. If a custom rifle has accuracy issues I can't resolve, I'll try a new crown on them. The Manson kit is very accurate.

Bob

You'll be out 3 but to try the screw.if Melvin can get good results with a ball burr, a screw should work in the right hands.

It does..

I chuckle at those who say it won't.

Maybe I should have called it a brass ball end cutter.

I did have to cut 1/4" off the end of a barrel (worn crown from overuse and poor technique for pull-through cleaning). Used a file to get it square and smooth, and then blued it. No crowning - shoots great.

This chit ain't rocket surgery.

I've had good luck with a standard 45-degree debur/chamfer tool. I'd give it a whirl and if it doesn't work, move on to something more elaborate. I'm not convinced a dinged crown is always the root cause of fliers so I'd be careful chasing the crown when it could be something else... unless it was a proven shooter before the ding.

Interested in the set up Rancho.

At least now I've got a valid excuse next time I shoot.....lol

2 types of people work on guns; Gunsmiths and idiots...

Plus 2 on that

Ever bumped into a bench rest shooter that did his crown with hand tools? There's probably a reason.

Funny that expectations are so high for the CTR..... that a single sub-minute miss is cause to question system integrity.

I've touched-up a dozen crowns with a standard deburring tool and a brass screw.... its never hurt anything.... and has led to some consistency improvements.

DS, can you describe your procedure for that?

Take deburring tool..... spin lightly in muzzle (kinda like brass)... Chuck done-headed slotted brass screw in drill... apply valve grinding compound to screw head.... Place screw on muzzle and run drill at moderate speed.

I've also used one of the Dremmel cone-shaped grinding bits spun by hand.... that seems to be the best way to do it.

Did this to a .223 just now....

Suppose you were an idiot, and suppose you were a gunsmith; but I repeat myself.

I guess I'm just blessed with the ability to do things most people can't even attempt.

And that's fine with me.

OMG, how can someone do that??

Well apparently they're an idiot.

I hear some people actually work on their own cars.. Idiots!

Do you realize your chamfering tool ate rifling a 8th of an inch past your pretty polishing job if it shoots it will be chetthouseluck. Good news is Brownells sells a tool that will fix it

The crown job actually turned out quite nice with no burrs or nics and passed the Q-Tip test easily.... unlike the last time you used a Q-Tip.... and let all the air out. If you can get your shoes tied this morning it'll be chetthouseluck. If you bothered to read the post.... I've done that a dozen times, never made anything worse.... and sometimes it makes accuracy a far sight better.

Once again 24hcf theory is running rampant over reality....

I love all the internet jockeys on here..... 95% of guys shoot their mouths off way better than they'll ever run a rifle. Bad news is, Fred, that Brownells doesn't sell a tool to fix that......

If you are happy with that, then I'm happy for you.

Nice work. I've used the brass screw method to touch up crowns many times before, always with excellent results, but this is the first I've heard of a Q-tip test. Care to explain? I'm envisioning spinning it in the crown and if there's no fuzz left behind, you're GTG?

Yup. I have used this for years with zero issues.

http://www.brownells.com/gunsmith-t...m-brass-muzzle-crowning-lap-prod855.aspx

Yes Jordan, that's correct.

I had an old 'smith show me how to use the chamfer tool and brass screw.... he used them all the time, and built some very accurate sticks. He had all the "tools", and would use them when building guns. But for a "quick fix"... or to see if the crown was the problem... he went to the brass screw. He would use a cotton ball to make sure there where no burrs on the crown.

There's a reason I haven't bought a "crowning tool" from Brownells.... because I've never needed one. Besides, how can you fhugk-it up? If you do, it was a bad crown anyway.... right? Try it.... if it doesn't work, buy the tool... or send it to the 'smith. Do you take your Prius to the dealership when it needs air in the tires?

I've also watched a benchrest jockey use the same method on a VS .22-250 at the range one day.... it made a world of difference on that gun.

Funny how performance doesn't matter here on the fire. If you do your own work, and your gun shoots well..... you're lucky. But, if you drop $5000 on a GAP or Gradous.... it's ok if it shoots like schitt.... because it was built by a "reputable smith". Ask Drew how that's working out.

DS, off-topic but what camera did you use for those crown pics?

Very sharp detail.

Iphone

No sh**!!!

A lot of my YouTube vids are shot via IPhone through the spotting scope too... it's the one camera I always have with me.

Well in my case I converted a $150 rifle from something that sent bullets sideways through the target (if they managed to hit the target) to a MOA performer. Granted this is not long range accuracy but I don't think I'm an idiot for doing this. I'd be an idiot if I spent money getting a gunsmith to recrown or if I went out and bought a lathe to do the job properly.

No your right - I'm an idiot for posting my experience.

Yup. Picked up an iPhone 6 a month or so ago and put away the camera. Big upgrade compared to the 5 I had.

I've used a technique very similar to Dogshooter's on a number of barrels and saw similar results; namely groups staying the same and occasionally shooting better than before.

I once shortened a barrel an inch at a time to measure velocity loss. Did not bother to crown the barrel, and groups stayed pretty consistent through the test.

+2 and Brownells sells guns smithing supply's. You have no business even looking at the web sight. Just hang your moms picture back up once your done with the screw. Thanks for the lol.

I'd be interested to hear the particulars on that if you don't mind and still have the information.

Without a lathe and gauge rod to make sure you are cutting the face of the crown square to the path of the bore as it exits the results are a bit of a crap shoot.


BTW often need a bore scooe go see crown problems like burs on one side, if you can see them with the naked eye it's really bad.

So before you had technical insight..... and now you just have insults..... hilarious. Now that's twice you've done some excellent long range mouth running..... but you've yet to make a hit. Also, you might want to swing into Punctuation Warehouse next time you're in town..... you're obviously in short supply.

I also find it hilarious that we've seen/heard from folks who've done this successfully with nary an incident, we've heard all the conjecture from the peanut gallery on how it's the dunmbest thing you can ever do, but we've NOT heard from ANYONE who's ACTUALLY done this..... and FHUGKED UP THE GUN!

You spunk monkeys are using Brownells as an argument for NOT doing this..... but Brownells has specific instructions on their website on HOW to do it with a chamfer tool, a brass lapping tool, and a drill.

Here's the link.... just for you two Freddy and Aunt Bea175.......

http://www.brownells.com/aspx/learn/learndetail.aspx?lid=10598

Once again, those who can't will always find excuses why you shouldn't.....

Seriously have you ever seen a Gradous rifle that doesn't shoot...........

Thanks for that link Dogshooter.

I have one of these with the 11 degree target cutter and have been very pleased with it. It cuts a nice crown and has a guide to keep everything concentric to the bore.

IMO well worth the investment.

I have both the Lathe and the Manson tool and can't really tell the Lathe does a better job. The Manson Tool is well worth the investment.

I've had a Brownells chamfering tool for around 25 years now, and have used it to crown and recrown dozens of barrels. It works great, in fact one of the recrowns was on a Remington 700 heavy-barrel .223 that is still the most accurate factory rifle I've owned. When the barrel was young it would average 5 shots of its favorite load in 1/4" at 100 yards.

As Rancho Loco said, it ain't rocket surgery.

The flutes you see cut in the guide and expand when the guide is tightened. This locks the guide into the bore and keeps everything aligned. The brush is there to hold the guide while it's being tightened.


The only draw back is you need to buy different guides for different bores. I don't think they cost too much though.

http://www.mansonreamers.com/

IMO, there is a difference in a polish and a re-cut.

in no way is your crown square and true to the bore. That was my point. You started the insults with some shoe tying joke. thanks for showing us the way we should recrown rifles I'm betting all the 12 + guns u have fixed this way are .5 Moa shooters. I like my guns to much. To ruin them with a it might work fix. But your are free to do as you please, my original take that if it shoots your lucky . Is right on and I don't have time to deal with dice and card tricks. Sorry your feelings got hurt, because I think your quick fix is stupid. If you can't take some one saying it's not the best way, grow the puck up.

Again..... if it's already messed up... what have you got to lose?

I'm amazed at your ability to judge the concentricity via a single pic taken from an angle.... genius if I understand correctly.

It's not like we're taking brand new crowns and polishing doing this to them.... this is about trying to repair a little nic or scratch.

Still haven't wrangled up that punctuation I guess?

I get fixing a bad crown but y not do things right. pointing out spelling and punctuation your so smart get a life. Sounds like the crew is starting the quads got some sand to grind.

I'm thinking illiteracy and the inability to do simple gunsmithing are going hand in hand here..

pegged it...

I'm still trying to figure out how to hang a shelf that's not 25 degrees off level.

I wonder if after the cut one could run a file to level things off, humm...

Quads..... that's all I needed to know....

Just doing a little scouting......

I cut my own crown after I chopped off 1 inch of the barrel took a flat file to even it out then did the brass screw with lapping compound I was pretty proud of myself and the rifle shot hell of lot better after I did that.

Never said a brass screw would not work I said your cutting tool looked like it took way to much rifling. Read the post. Qauds yep quads fun and I they piss off old men like you even better. The camp fire is a big dick contest now days your awesome everyone else is dumb. You you win your the king of the Internet.

GFY

Please point out from pic 1 to pic 3 where the "rifling has been removed".... once again, your amazing powers of perception via a couple pics is astounding.

Oh.... and it's "you're" king of the Internet..... dipschitt....

your so cute resorting to grammar Teacher

Yes...he has power tools.

Overthinking the crown?

http://www.longrangehunting.com/articles/rifle-crown-1.php

I'm getting in this late; trying to follow this thread. Does anyone understand Fred?

Grammar is important. It allows your readers to understand what the f*ck you're trying to say.

Dogshooter? The latest name I guess? How many times have you been banned for twisting these bitches tampons?

Quit stuttering.

This thread is beginning to crown.

I would have to question why a man that finds removing a small imperfection from a rifle barrel undo able, would even own, let alone fire such a complex piece of weaponry.

I'm guessing only Mr Goodwrench could change his wiper blades sorta mind set.

I would question why some one would do something so half azzed. If dog shooters crown was as square as his head he would be lucky.

I would question why you'd question something you've never done.

I can understand not wanting to do it yourself.

Two entirely different concepts.

I'd much rather a square head..... than a pointy one like yours.... or is it you'res?

Multiple people have chimed in with their success.... still no evidence to the contrary.... yet you continue your (you're?) tirade. Seems even those that had your (you're) back have abandoned ship. It's ok though.... keep stomping your (you're) feet and yelling at the screen....

If you had any understanding of the purpose of the crown was,you might understand.
The bore diameter along with the hardness of the barrel, there is .003-005 difference in the two diameter we are working with here,it would take an idiot to screw it up.
Simply lapping the crown with a soft brass screw and some compound would likely point out the high spots that could be causing your issues.

As simple as it is, to some its still way over their heads.

Lot of voodoo black arts required to make a rifle shoot.

Think a brass ball/screw is fine. Just not reaming the bore. picture #3 clearly shows a larger shining strip on one side of your crown than the other. Pic #1 shows you chamfered deeper than you could polish, that was my observations I'm out, done with the crown clown enjoy your 2moa treasures.

Pic number 1 was before anything happened dumbass, it was untouched factory.... you don't know

Using a flash, and taking pics of round schitt at an angle tends to make shinny stuff look a little funny. But again, if not expect someone who knows nothing, and does less, to understand.

First rule of holes: when you're (your?) in one.....Stop digging.

fixt

fredIII, That best be the biggest Damn buck (or is a doe?) ever seen if I'd had to get it off that hillside, I'd a let him go if not!-Muddy

Any one that has as much trouble with a key board as Fred does, likely should not use fire arms nor power tools.

A golfer is he, fit to be.

Now that was mean.

Pardon me if I'm wrong Sir, but if I kill all the golfers they'll lock me up and throw away the key....

Carl

Those who do not, will always question those who do.

It's called OCD.cant help themselves.
Hand tools are perfectly acceptable for cutting a knew crown.

hoo new?

Yew two?

HILARIOUS schit!!! Fredrica and THE Do Nothing Kchunts,expound upon their Dumbfhuqkery...by simply doing their "best".

Pardon my having ALL the T-shirts and then some. Hint.





And the 4.9fps loss.



Extrapolation.



Just sayin'.


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You Drooling Dumbfhuqkers are a HOOT!

Stick,

Did you slug/feel the Annie bbl first or just commence with the blasphemy?

Hahahahah dick breath is here. You thought this was real did you. You sad little man. I was just waiting for you to line up for some balls on your chin. Laughing. Or should I say laugh laugh laughing. Now don't get all twisted up and piss your panties. I might let you be my caddy some day if I ever take up golf.

4.9 fps is pretty good give for about 5".

'bean,

Slugging the choke is more Myth and Wives Tales...but that sorta schit sounds good to some folks and puts their minds at ease.(grin)

I've chopped alotta spouts and balance/handling trumps all.

Hot off the press yesterday. 77/17 in 17 Whizzum.





4" chop from 24" to 20",cost 56fps with 20 grainers(it's now at 2940fps). It'll shoot under an inch easily and has yet to be bedded or floated. Trigger was stoned and re-sprung and is a CH under 3# now. 1" 3.5-10x M1 ele and 3/4 minute CPC Dot,which ain't the best on paper,but a terror on heartbeats.

Hacksaw chopped(obviously),RCBS VLD "crowned" and 1000 grit wet/dry whirly-gigged.

Thinkin' she'll shine brightly,with a little more TLC.

The 17 Whizzum is for fhuqking REAL!

Mebbe I'll chop my Annie 1827 this evening.










Fredrica,

If you had as many dicks sticking out of you,as you've had stuck in you...you'd look like a fhuqking Porcupine. Congratulations?!?

It's your Imagination and I get a fhuqking kick out of how "real" your Pretend is to you.

The only thing you shoot is your mouth...but only when the fork ain't in it and there's no slighting,the high mileage on your fork!

You tub of schit Do Nothing Fhuqks are a hoot!

A dick porcupine must be the retard version of a chipikubra if you catch it all your wishes will come true. (You talk a lot about it).

1,000,000 rounds over 90 a day for 30 years the myth is just that a myth. (practice for the special Olympics no doubt).

I'm Still better at life you sad little man.

And the saga continues... Stick that 17 has a nice piece of wood on it for sure..

fredrica,

You are at the MERCY of your means,abilities and comprehension...which is easily amongst THE dirtiest of tricks. Being forced by default,to use yourself as a barometer of evaluation,there are countless things that are squarely IMPOSSIBLE for you,that are mundane and daily occurrences for others. Read that again. Now one more time.

Laffin'!

Cheer up...I've put well over 100 million board feet on the ground too and ain't much fun to try and keep pace with,as your feeble efforts attest.

Now for some reason,I don't feel compelled to apologize for happily lopping off dozens of spouts,to much improve balance/handling. I do very much enjoy the Myths,Wives Tales and Vivid Imaginations that accompany such things and the deep trauma it inflicts on folks who "do" as "much" as you. Feel free to continue to talk out your ass,in regards to the things you "know" the least about.

Imagination and Pretend are priced in sucha way,that even you can afford it and be certain to tell yourself the things you most NEED to hear.

The ONLY thing you are better than anyone at,is eating.

Congratulations?










'S,

Ruger fhuqked the dog,when they offered it in anything other than laminate. FL bedding do help fend inclement weather realities,but living handles are a heavy concession,as compared to dead ones.

We all have 77/22 K-Hornets based offa the S/S Laminate and they've stood the test of time and round count(I've been around over a dozen of 'em). I've multiple 77 K's and even slum a 1st version Blued/Walnut...though it's Teflon coated and chopped short in LOP for kids.



Happened to have a couple laminates in my crummy.(grin)



My Mainstay K' hasn't seen a brush or a mop in well over 3000rds,though I do swab the chamber now and again as '296 is dirty and a muddy chamber does no favors when forming cases.



If Ruger tossed The Baby Whizzum in a plywood handle,it'd certainly sweeten the pot. Buck 'em off at 20" and a guy would REALLY have sumptin'. While I've broken quite a few laminate handles through the years,I'll always take one over Living Wood...though only a McMillan rates a Jolly Roger.(grin)

When McMillan literally broke the mould,it were a sad,sad,sad day.



I'd love to see Anschutz crank out a 17 Whizzum Repeater on a 54,wearing a S/S spout.

It'd go into one of my sadly discontinued McMillan T-hole Sillywet handles.



Oh what a ride that BAD Bitch would be!

Anywhoo...I found a 26" 308 Winny spout yesterday and mebbe I'll whistle some Skinners through it ala kiss,found pressure and rockin' on,then kickstart the hacksaw to see WTF.

Because I hate 308's,I'll not even use the VLD Deburring Tool on it,I'll go Retro and rock a Ping Pong Ball BC Deburring Tool instead.

Film at 11:00.(grin)









('79 'dendum)

I've ZERO desire to play with steaks 1000 miles from the house,as I've more tags on the kitchen table,than we could ever begin to eat.

I only get 6 months of vacation a year and there's simply not enough hours in the day,to do what I want to do and nobody is gonna out-grind me.

It's rough.(grin)

Man I need to get me a nice Sitka black tail like our son got. I'm not picky I need one to go with my couse deer I have hanging on the wall. Stick you need to put in for one of the unit 13 caribou permits get you on a big one for sure. You can hang out with us flatlanders

While I have never been able to detect the effect of a barrel crown with the crude test of a 5 shot group at 100 yards, I am sure it could be detected [and even quantitatively resolved] with less than 1000 rounds in a controlled test of world's best crown vs world's worst.

But because it is a non recurring effort and a popular part of accuracy folklore, I put the barrel in the lathe and dial in the muzzle on the right side of the headstock with a spud. Like chambering, i get the spud not only concentric with the lathe spindle at one x position but with a gimbal I can get it parallel with the spindle. I get that with the spider on the left side of the headstock. Then I do the mythical 11 degrees with an outside radiused guard ring [so I am not waving a cookie cutter muzzle] and a microscopic chamfer at the bore.

I do the same ritual for cutting threads for a muzzle brake.