KYHillChick bought me a Teslong borescope for my birthday-- $50.

I couldn't be happier:



That's a pic down the bore of my MAS 36-- certainly the biggest basket case in the rack. I've got more pics and details here:

New Bore Scope

Not saying you need to clean that bore ... BUT !!!

This product will take care of that fouling in short order, I use a punch type of jag with tight fitting patches. 4-6 patches short stroked will do the job. Then follow with 4 patches of bore solvent.

https://www.ebay.com/itm/Flitz-Gun-Bore-Cleaner-7-6-oz-Bottle-/124218944821?hash=item1cec06ad35

Believe it or not, that pic is after I ran Flitz down the bore for 100 strokes. This rifle was a birthday present a few years ago. I got it shooting about 2 MOA and then cleaned it again and put it away. The last patch was clean. Moral: a clean patch does not necessarily mean it's clean.

Maybe y’all can tell me what that stuff is that seems to be missing from the land in this pic



just to the left you can see the raised area where it looks like delamination. In the mirror you can see a chunk missing.

You need to adjust the light source down a bit lower.

That “looks” like a Crevis in the metal in the land with some carbon build up on it ?

I’d have to look at this closer without so much light to tell for sure - unfortunately it’s easy to confuse raised vs. sunk surfaces in a bore scope.

Same spot just closer view.

That looks like lead or carbon build up in the grooves.

I’d wire brush the snot out of it (remember NOT to reverse the brush in the bore) to see if it loosens up and comes out.

Make sure you mark the spot you were checking on your bore scope with tape so you can go back in and see the same spot.

Interesting it is. To date that barrel has at least 1000 strokes of JB Bore Paste, Bronze brush and combinations there of. Same spot



Every once in awhile I will set out to brutalize myself and pull that tube out of the cabinet to remind myself of what believing what’s on the internet can do.
I might still make a tomato stake out of it.
😄

How does it shoot? I have 2 rifles with barrels that look like crap and are copper mines but shoot MOA and under. I quit worrying about it and learned to use bore solvent over night when I clean them.

Bore scopes? A barrel makers friend.

Yep!

Ive had a bore-scope long enough now to realize that rough bores with copper fouling (as in the first post) don't necessarily shoot better if you clean out the copper. In fact, they often shoot worse until the copper build-up fills some of the the pits again....

As a practicing shaman, I have experience with such Secrets Man Was Not Meant to Know. Still, thanks for the warning.

Swiftly the last pick is of course pressure / fire erosion...

But listen to Mule Deer - it might shoot just fine.

Find out if it likes shooting dirty, and do what ever she likes to shoot the best.
The only thing I can say is stay with the same type of bullet, some types of copper don’t like other types of copper and make strange results.

I found that out the hard way. I have a 700 in 30-06 that would stack up bullets up at 100 yards. I decided to clean it real good one day with copper remover and now it's just average. I guess I'll need to shoot it until it gets back to normal.

ALSO! Remember these scopes magnify everything to make it look worse than it is. When I first used mine, it scared me until I realized this. Tiny pits look like potholes and copper streaks look big as the lines in the road.

Good God am I laughing here.
That last pic was taken 3 months ago and only posted once, Mule Deer never commented on it just like he didn’t here.
Why, because that barrel was taken off and replaced over a year ago and he knows it.
Have had a new Krieger tube on that rifle since June of last year. Still haven’t shot it.
Guess I should have just used sandpaper on the barrel as was suggested on here according to well informed sources and supposedly the company.
Would have saved the tube. 🤣

Swifty,

WTF are you talking about? I did NOT mention any photo you posted here, just the one in shaman's first post.

Nothing to laugh at - some barrels look crappy but still shoot that’s pretty much all that was said.

But hey if it shoots good, and you have a smith replace it because of what you saw in a bore scope - thanks for supporting the proffesion.

I know that, he did.

Spotshooter, I am laughing cuz you stepped in a pile of sh*t and didn’t know it. But you kinda deserve it. Do some research first.

I didn’t realize I was replying to a pile of sh*t... I was calling what I saw in a crappy bore scope pick.

thanks for the clarification, I agree the dodgy post was a sh*tty play on your part.

Now children, don't make me send you to your rooms.....

Pics of the throats of my 243AI, 300Win, and 257Wby are all very "cringeworthy" regarding wear and fire-lapping lizzardiditty. But, they shoot fine, so I keep shooting them.

After seeing them on this forum, I picked up one a while back. More than anything, it confirmed what I though were quality barrels really are where it counts, on the inside.

When I got my scope (same one) I immediately checked all if my rifles. Nothing great to report until I got to my Rem 788 in 223 rem. The bore looks just terrible. I scrubbed and cleaned the heck out of it and the gun quit grouping. I quickly found out the gun needs a fouled bore to shoot accurately. As some one mentioned before do not go by just the appearance of the bore. The 788 shoots under 1" if I do my part, but If I have cleaned it I need three fouling shots to set things right.
Sometimes it is better to not know what a barrel looks like as long as it shoots.

m1892 (and others),

I have encountered plenty of barrels that did not shoot worth a darn until fouled--and the number of shots required to "foul" them sufficiently has varied considerably.

One was a custom, cut-rifled, hand-lapped .300 H&H barrel from a maker who had never "failed" before. My normal procedure with a new barrel is NOT to fire one shot, then clean, then repeat--and anal retentive technique developed by benchrest shooters to break in barrels BEFORE their first match. Instead, I clean down to bare steel after each of the first 3-4 range sessions, usually a dozen or two rounds rounds--which does the same thing.

This rifle did not shoot worth a darn during the first range session, around a dozen rounds, whereupon I cleaned it. It did not shoot worth a darn during the second range session, whereupon I cleaned it again. I think it was the third session, when I handloaded a bunch of bullets and powders to try find what it WOULD shoot, that it finally started shooting well AFTER more than a dozen rounds. It turned out the barrel would should great from 15 rounds after cleaning through 100 more, before accuracy even started to fall off slightly.

The bore looked perfect in the bore-scope, but it was apparently TOO smooth.The barrel-maker finally told me that he'd polished it with a much finer paste than he'd ever ever used before. Which is yet another reason I do NOT pre-judge a barrel's accuracy from looking through it with a bore-scope.