Bore Condition

[grantre72]

Recently purchased a used "excellent" (according to website) condition Model 70 (2011) on-line. Upon inspecting the bore, this was its condition:



Anyone know exactly what this is? Kroil, Hoppe's, Boretech C4 wouldn't touch it.

 

[DHD]

Looks like pitting.

 

[JLT]

That is pitting. The only thing that will touch that is setting the barrel back for a fresh chamber.

Who knows? It might shoot well beyond expectations in that condition. It's worth a trip to the range.

 

[grantre72]

That is pitting. The only thing that will touch that is setting the barrel back for a fresh chamber.

Who knows? It might shoot well beyond expectations in that condition. It's worth a trip to the range.

Would like to, but don't want to jeopardize getting a full refund by causing more damage by firing.

 

[Thud]

Return it. Will only drive you crazy.

 

[bobm]

That is pitting for sure but looks water caused, not flame erosion. Not a uniform appearance.

Keep in mind this is about a 25-30x magnified view. Shoot and enjoy it.

 

[JLT]

Would like to, but don't want to jeopardize getting a full refund by causing more damage by firing.

Unlikely, improbable and almost impossible that sending twenty rounds down the barrel will make it any worse. What caused the pitting was one of two things:

1. Chemical action
2. Moisture, working in concert with fouling that was left to sit. Truth be told, this is a form of chemical action as well.

In either case, it took quite a bit of time to produce this pitting. Put a barrel away dirty for six months or so and this is what you might see the next time you give it a look. You won't make it worse by shooting it a few times.

 

[DHD]

If you can get your $$ back, I would. I don't know what a Model 70 costs to rebarrel at all.

There is the chance it will shoot fine, but wanna bet on it? Look at my second sentence above, again. Hey, I've been wrong before...

 

[grantre72]

That is pitting. The only thing that will touch that is setting the barrel back for a fresh chamber.

Who knows? It might shoot well beyond expectations in that condition. It's worth a trip to the range.

Should clarify that almost the entire length of the bore is like this. Don't think setting it back would help.

 

[DShortt]

Should clarify that almost the entire length of the bore is like this. Don't think setting it back would help.

As mentioned above, if you can return it, that's what I would do.

 

[Wind River]

I have seen ammonia based copper removers cause corrosion. 40-some years ago I left Sweets in a barrel overnight, I didn’t mean to, I simply got busy with something else and forgot all about it. Ruined a nice M70 Win barrel.

 

[charlie b]

I'd be really upset if that's a dealer. They would have to know the condition and would be hoping the customer would not have a borescope to examine it.

 

[SSL]

I'd be really upset if that's a dealer. They would have to know the condition and would be hoping the customer would not have a borescope to examine it.

Exactly why I always take one of my flexible Teslongs along on any trip to a gun shop. t It has saved me a few times.

 

[jelenko]

Exactly why I always take one of my flexible Teslongs along on any trip to a gun shop. t It has saved me a few times.

Do you get any strange reactions from the dealers when you ask to bore scope a barrel?

 

[SSL]

Do you get any strange reactions from the dealers when you ask to bore scope a barrel?

A couple got offended - particularly when I rejected a couple offerings due to what I saw. I decided they didn't want my business very bad. One shop asked for full info on where and how to buy one. The next time I visited, they proudly handed me their own!

 

[jelenko]

A couple got offended - particularly when I rejected a couple offerings due to what I saw. I decided they didn't want my business very bad. One shop asked for full info on where and how to buy one. The next time I visited, they proudly handed me their own!

Amazing the difference in people. Makes a big difference.

 

[JLT]

Should clarify that almost the entire length of the bore is like this. Don't think setting it back would help.

In that case, I'd return it. If the pitting appears throughout the bore, it'll copper up like crazy.

 

[SSL]

Amazing the difference in people. Makes a big difference.

I hate to say that it says a lot about the honesty of the individual shop.There are so many really good and honest shops that it isn't necessary to patronize the crooks. I have been banned from two shops for "ruining" sales for them. The first one was a sales person trying to sell a guy a new 6 mm Remington rifle because they "no longer made ammo for an inherited .244" that he wanted to use for groundhogs. I was asked (make that told) to leave when I called the seller out on it and told the buyer to just buy the 6 mm Remington cartridges in 75-grain (his preferred groundhog weight anyway) sitting in neat rows right behind the sales jerk and explained why. He also left saying he would find an honest shop.
The second was the shop owner who was trying to sell a man a Desert Eagle for our brand new upcoming handgun only deer season...failing to tell the man that our rules for the season restricted us to revolvers only. Again, I was asked to leave and not return. No loss.
And my apologies for hijacking the thread!

 

[jackieschmidt]

Recently purchased a used "excellent" (according to website) condition Model 70 (2011) on-line. Upon inspecting the bore, this was its condition:

View attachment 1696868View attachment 1696869

Anyone know exactly what this is? Kroil, Hoppe's, Boretech C4 wouldn't touch it.

Being a model 70, I’m sure it’s a chrome moly barrel.
That looks like good old corrosion.

 

[ptf18]

O.P. If your going to keep it and If it was mine. I'd start cleaning it with new brushes and then JB the heck out of the bore. All way before I'd shoot it.