Anyone else thinks this looks like manure?

[Tenring]

The OP has shot this pistol thousands of times and is only worrying about this problem now?

That’s what I can’t figure out, just shoot it.

 

[Codger Craig Wilcox]

36 Rooster, I have a barrel for the '58 Pietta in very good condition. Fellow who used to own it messed up the brass action/receiver. I recovered the barrel, loading lever, wooden grip, and the innards of the action. Write me a message if interested, it goes cheap.
All the blueing is intact, as is the rifling, threads, sight, etc.

 

[.36Rooster]

Brownell's has what you need. Look for rifle/handgun muzzle & cylinder facing & chamfering tools. They turn by hand & you just get the pilot to match whatever bore diameter you have. They come in both 90 degree to square up muzzle & 45 degree cutters to give a recessed crown.

Brownells is good,

Right now, for the cost of the tools, its cheaper than a replacement barrel. But at my pay rate, the time for the labor brings it to about the same cost...but im thinking since im about to dovetail in a front sight to adjust the windage that is off from replacing the hammer on it from mostly plinking, i might as well just do a couple extra hours of work and fix the crown too at the same time, i would enjoy doing the work; and I know with replacing the barrel i will have to adjust the windage anyway by cutting a dovetail and tapping in a sight. So i might as well just do it all myself...after looking at this barrel inside and out, im pretty sure a simple crown will fix it without having to cut anything off; but I am also considering trimming it down an inch or inch and a half though, because when I put my hand on it, i like the looks of it for that shortness...as far as i know, the rifling on the shorter barrels is the same as it is on a 7.5", 1:30" so I dont think im sacrificing anything, other than having to purchase a shorter 5" loading lever assembly for $35.00.. which wouldn't be too bad...still considering it.. I dont exactly dislike the 7.5" barrel.

With most of my shooting having been hip shooting and practicing for speed at under 10 yds, the accuracy hasn't really ever bothered me in the past, but i would like to improve it. Have took it out squirrel hunting and killed a little less than a dozen with a direct aim up close... but my hope is to get its accuracy up to par with my other pistols, to hit a squirrels head out to 20-25 yds. The gun deserves a make over, considering all the fun i have gotten out of it over:

 

[Josephg]

Good chooteen, quicksdraw!

 

[GREENSWLDE]

View attachment 105602

Im talking about the 7 o clock to midnight of the muzzle. Its so out of round, its practically oval...i don't even know how something like this could be drilled...how does something like this even happen at the factory. I have never seen a drill capable of drilling an oval!...i need to know what went wrong at least before i can figure out if it can be fixed, honestly ordering a new barrel seems like a crapshoot if this is what ended up from their manufacturing process...project weather is coming soon, and work will be winding down a bit. Would like to make improvements on this gun as i am really fond of it...i just don't see how it is possible that the entire interior of the barrel follows this shape. Thats not how drill bits work! What is going on here?

Hi,Rooster.
Nothing wrong with Oval bore's. Mr.Charles Lancaster of London prooved that in the 1850/60 shooting his rifles out to 1000 &1200yds at Wimbledon..
His were smooth bored. O.D,

 

[.36Rooster]

Well, yes, but i can't help but think if the barrel is round, and the muzzle crown is oval, then a crown job won't hurt matters. Lol

 

[necchi]

.this is a thread asking for advice from people with technical experience in muzzle crowning issues.

It is? Why didn't you say that in your 1st post?
You asked if it look's like manure in your post.
I agreed.
Then you said it shoot's great,,,(?)
OK,,
If you need that kind of assistance, then it should have been asked for, in the topic.
How did that damage happen? How do you load? How do you clean?
Muzzle wear, usually happens with the loading and cleaning practices, not just shooting.
Again, if it's not factory manufacture issue,,
What caused the problem?
Fixing wear issues can be and are a common, but finding what's caused the problem can stop it from happening again. Get it?