Rough Spot in Barrel

[FallingCrows]

After spending 3 hours getting all the crud out of my barrel that has built over the years. I found that I have a rough spot in the barrel. It's between rear sight and breech. But feels like it's still in the rifling area.

What options can you give me to make it better?
I did use JB Bore compound, so my only option may only be lapping it.
What do you think?

- FallingCrows.

 

[Old Ironsights]

After spending 3 hours getting all the crud out of my barrel that has built over the years.

:shocked2: :shocked2:

I found that I have a rough spot in the barrel. It's between rear sight and breech. But feels like it's still in the rifling area.

What options can you give me to make it better?
I did use JB Bore compound, so my only option may only be lapping it.
What do you think?

- FallingCrows.

Removable breech? Makes a big difference in the answer.

 

[Landngroove]

Now that you have cleaned your barrel, why not try shooting it? As long as loading is not impaired, it may be that the rough spot may not affect accuracy. The only way to find out is to try it.

 

[FallingCrows]

It's a Lyman Deerstalker, so the breechplus isn't removable. I wish it was. That way I could look down the barrel after each cleaning.

Ya, I was just hoping that someone has a cure-all solution beside replacing the barrel.

I'll find out this weekend when I go to the range.
- FallingCrows

 

[Old Ironsights]

Well, unless you are shooting master grade at Friendship or somthing (and if you have "years of gunk" in your barrel I can be pretty certain you're not... :blah: ) a rough spot near the breech shouldn't matter too much.

A good test would be to pour your favorite load down the barrel (use Cream-O-Wheat if you don't want to waste powder) and see where that spot is in relation to where the bullet sits.

If you use Minnies and the minnie engages the rough spot, it might be a problem. But PRB shouldn't be overly affected by a breech-end rough spot unless it damages Patch, or forces you to deform the Ball when seating.

If the rough spot is mostly covered by Powder, then fuggedaboutit. It won't matter a whit. (Unless you are trying to shoot Master Class...)

 

[TANSTAAFL]

I have waited for someone else to weigh in, but. I have found the 3M type green abrasive pad works great for polishing the bore, others use this also. I cut a strip of the pad to wrap around ferrule end of hickory wiping rod for a tight bore fit, insert to roughness spot, and put the elbow grease to it in that area with a reciprocating motion.

 

[FallingCrows]

It looks like the ruff spot didn't matter.
The gun is shooting much better. I'm getting about a 2 1/2" group with 5 shots at 50 yards. Once and awhile one shot would go wild, but was still only about 2" away from the rest. Something I could never get with the way it was. I also got better groups when I changed bullets from T/C Maxi Ball 370's to Hornady's Great Plains 385's.

I'm now a happy camper :grin:
Thanks for the help
- FallingCrows.

 

[Landngroove]

Good to hear that the ML is shooting better. Through repeated shooting, and cleaning, the rough spot may possibly smooth some.