Author Topic: barrel is cutting patches  (Read 4895 times)

JB

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barrel is cutting patches
« on: October 03, 2017, 05:07:54 PM »
My barrel seams sharp at the muzzle and is cutting my patches when I load.  What should I do to fix this.  Once its loaded down about 1/2 inch it doesn't seam to tight and goes down easy. 

any thoughts?  sand paper? 

This is a.50 cal.  I'm using .495 balls and .15 patch.  Its very accurate, and I hate to go to a smaller size ball. 

Please advise.

JB

Offline little joe

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Re: barrel is cutting patches
« Reply #1 on: October 03, 2017, 05:28:42 PM »
I would use a .490 ball and . 025 patch. What ever you do the patch needs to virtually  be ( I don,t) reusable.

Offline smokinbuck

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Re: barrel is cutting patches
« Reply #2 on: October 03, 2017, 05:46:01 PM »
Before you start changing ball size or patch thickness, check the muzzle. It sounds like you need to crown it to get rid of the sharp edge. Once you are past the muzzle your ball is formed to the bore and will go down smoothly.
Mark
Mark

Offline smylee grouch

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Re: barrel is cutting patches
« Reply #3 on: October 03, 2017, 06:06:15 PM »
You might also want to consider the short starter if you are using one. If the diameter of the short starter is too large it might be pinching the patch against the barrel as you load and compromising the weave of the patch right at that critical area where ball/patch goes against the barrel. Also as others have said the crown might need a good smoothing, some thing easy to do and won't harm the barrel.

JB

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Re: barrel is cutting patches
« Reply #4 on: October 03, 2017, 06:28:52 PM »
Before you start changing ball size or patch thickness, check the muzzle. It sounds like you need to crown it to get rid of the sharp edge. Once you are past the muzzle your ball is formed to the bore and will go down smoothly.
Mark
I think that's whats going on.  how do I crown it?

JB

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Re: barrel is cutting patches
« Reply #5 on: October 03, 2017, 06:29:48 PM »
You might also want to consider the short starter if you are using one. If the diameter of the short starter is too large it might be pinching the patch against the barrel as you load and compromising the weave of the patch right at that critical area where ball/patch goes against the barrel. Also as others have said the crown might need a good smoothing, some thing easy to do and won't harm the barrel.
I'll check the short starter, but I don't think that's the case.

Offline Daryl

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Re: barrel is cutting patches
« Reply #6 on: October 03, 2017, 07:17:43 PM »
320 grit emery or wet/dry paper. Pushing it into the muzzle with the end of your thumb, rotate your wrist and turn the barrel 180 degrees every 20 seconds or so. Turning the barrel will keep your crowning job square with the world.
No business I know of, sells a rifle with a shootable smooth crown. They are all machine cut and will cut a proper patch, that is a patch that is thick enough to do the job of keeping the barrel clean and deliver good accuracy.  Most 'factory' crowns are too sharp to load even weak (thin patch) combinations.

All of the 'crowns' shown will allow loading bore sized balls with .022" denim patches, without tearing.

Hint- shove a piece of cloth down the barrel about an inch, to catch the "grindings".









Daryl

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Offline FDR

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Re: barrel is cutting patches
« Reply #7 on: October 03, 2017, 07:23:12 PM »
Before you start changing ball size or patch thickness, check the muzzle. It sounds like you need to crown it to get rid of the sharp edge. Once you are past the muzzle your ball is formed to the bore and will go down smoothly.
Mark
I think that's whats going on.  how do I crown it?

Using the search function on this site will give you a lot of reading on barrel crowning.
Here is one post on the subject:
http://americanlongrifles.org/forum/index.php?topic=6885.msg64843#msg64843

Fred

Offline Don Steele

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Re: barrel is cutting patches
« Reply #8 on: October 04, 2017, 12:14:14 PM »
Welcome JB.
Daryl's "Crown Smoothing" technique is what most folks do and most find it solves the problem you're having.
When I've done it, I used a small piece of 4/0 steel wool under my thumb.
Your .495/.015 combination should be a good place to start btw.
Look at the world with a smilin' eye and laugh at the devil as his train rolls by...(Alison Krauss)

Offline kudu

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Re: barrel is cutting patches
« Reply #9 on: October 05, 2017, 07:07:34 PM »
I would use Daryl's method just be sure to hold even pressure with the thumb and rotate the thumb sand paper three or four times and then rotate the gun, then rotate the thumb sandpaper again three times and rotate the gun and again the same thing pick three or four rotations of the thumb and stick to that number.

now if could hold the barrel upright somehow  and be able to walk around it - all the way around, just hold the thumb sandpaper and do doughnuts around your Gun.   Try not to get dizzy and fall over : ???

Online rich pierce

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Re: barrel is cutting patches
« Reply #10 on: October 05, 2017, 07:31:35 PM »
Affix the barrel overhead, sit in a swivel chair, raise your thumb, and spin around. If you are Canadian don your ice skates, get a sky hook, and twirl away.
Andover, Vermont

Offline Daryl

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Re: barrel is cutting patches
« Reply #11 on: October 05, 2017, 10:25:46 PM »
 ::) ;D
Daryl

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Offline Joe S.

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Re: barrel is cutting patches
« Reply #12 on: October 05, 2017, 11:07:51 PM »
I would think a "you know better"email from one of the moderators should end the highjinks here,oops he is one,ice skates.....too funny ;D

Offline WadePatton

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Re: barrel is cutting patches
« Reply #13 on: October 06, 2017, 03:08:21 AM »
Hereby nominated for tutorial section. (skates and ALL!)  :D

second?

Hold to the Wind

Offline hanshi

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Re: barrel is cutting patches
« Reply #14 on: October 06, 2017, 07:07:55 PM »
Hereby nominated for tutorial section. (skates and ALL!)  :D

second?



+2
!Jozai Senjo! "always present on the battlefield"
Young guys should hang out with old guys; old guys know stuff.

Offline mountainman70

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Re: barrel is cutting patches
« Reply #15 on: October 07, 2017, 04:08:48 AM »
Affix the barrel overhead, sit in a swivel chair, raise your thumb, and spin around. If you are Canadian don your ice skates, get a sky hook, and twirl away.
Slow news day down St Looie way,bro?  it did make me laugh !!! Dave

Offline D. Taylor Sapergia

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Re: barrel is cutting patches
« Reply #16 on: October 07, 2017, 07:26:18 PM »
That reminds me of a limerick about a pirate named Yates, who was especially handy on skates....
D. Taylor Sapergia
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Offline hanshi

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Re: barrel is cutting patches
« Reply #17 on: October 07, 2017, 09:42:07 PM »
That reminds me of a limerick about a pirate named Yates, who was especially handy on skates....



 >:( Don't even think of going there, Taylor.  ::)
!Jozai Senjo! "always present on the battlefield"
Young guys should hang out with old guys; old guys know stuff.

Offline moleeyes36

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Re: barrel is cutting patches
« Reply #18 on: October 07, 2017, 09:52:43 PM »
Hereby nominated for tutorial section. (skates and ALL!)  :D

second?



+2


Make it three votes for the tutorial section.

Mole Eyes
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