Soon I'll be breaking in a "used barrel"

[Aitch]

I purchased a Broughton SS barrel from a forum member. The barrel had approximately 600 rounds down the tube. My smith cut off the barrel tenon, rethreaded a new tenon to Rem 700 thread specifications and rechambered to .284 using necked up Lapua brass and 180 gr Bergers. He also recrowned the barrel. It seems to me that all that is needed is to polish the throat but I'd appreciate all input on getting the best out of this barrel.

 

[mikegaiz]

I would just use some BJ on a tight patch to do the neck end to lands and the first 2 in. (reamer guide is about an inch out) in the barrel. Don't touch the crown.

 

[Gene Beggs]

I purchased a Broughton SS barrel from a forum member. The barrel had approximately 600 rounds down the tube. My smith cut off the barrel tenon, rethreaded a new tenon to Rem 700 thread specifications and rechambered to .284 using necked up Lapua brass and 180 gr Bergers. He also recrowned the barrel. It seems to me that all that is needed is to polish the throat but I'd appreciate all input on getting the best out of this barrel.

Don't waste your time polishing or breaking in anything. Give the barrel a thorough cleaning, oil the bore lightly with a bit of gun oil and shoot the sucker! Life's way too short to waste even a moment of it "breaking in" barrels.

My two bits worth,

Gene Beggs

 

[savagedasher]

JB it like said above . I never shoot a barrel without doing it . Can I say it helps? No
But it sure won't hurt . Larry

 

[JRS]

JB it like said above . I never shoot a barrel without doing it . Can I say it helps? No
But it sure won't hurt . Larry

Depending upon how aggressive one gets, it most certainly can hurt.

 

[Aitch]

I knew this was a bit controversial but it seems like polishing the throat after a fresh chambering would be beneficial.
Do you refer to JB Bore Brite or their Non Imbedding Cleaning Compound?

 

[joed49]

I'm in the Gene Beggs camp. Nothing will polish the bore like a bullet. I'm not a believer in JB as in reality you'e rushing wear on the barrel. How do I know that? I over used it thinking it wasn't a bad thing.

 

[mikegaiz]

I'm in the Gene Beggs camp. Nothing will polish the bore like a bullet. I'm not a believer in JB as in reality you'e rushing wear on the barrel. How do I know that? I over used it thinking it wasn't a bad thing.

In the first you sentence you say doesn't work and you follow up by saying it does work, don't over do it???? Don't you think if used as I said above on the first couple of inches of the throat it might actually be a good thing???? I have built many wining competition guns and I do this process on all of them. read my quote below.

 

[JRS]

In the first you sentence you say doesn't work and you follow up by saying it does work, don't over do it???? Don't you think if used as I said above on the first couple of inches of the throat it might actually be a good thing???? I have built many wining competition guns and I do this process on all of them. read my quote below.

That is not what he said.

 

[divingin]

In the first you sentence you say doesn't work and you follow up by saying it does work, don't over do it????

I didn't see any of that in his post. He said that he doesn't use it, and that the one time he did he [implied: damaged/ruined/excessively wore the barrel] from being too aggressive.

 

[JRS]

Take the advice Gene Beggs offered.

 

[mikegaiz]

You can try to lead to water, but you don't have to drink.

 

[geraldgee]

Do whatever gives you the most confidence. If you don't polish and the barrel doesn't shoot - you'll blame yourself for not doing it. If you end up polishing and it doesn't shoot, you'll always wonder if you eroded the throat.

While the throat is newly reamed, the lands and grooves have 600 rounds through them. My guess is that it isn't going to get any better regardless of what you do.

I hope it shoots well for you.

 

[chuckshooter]

I cut 6 inches off an old rem 40x 220 swift barrel that had 4000 rounds down the tube and turned it into a 22k hornet on a martini cadet action. load and shoot is what I say

 

[nmkid]

I would just clean it thoroughly clean and get to shooting.

 

[watercam]

After 10 rounds the throat will be good to go. Blast away.

 

[Zero333]

I do JB only on factory barrels that have to been hand lapped.

Otherwise just a really good cleaning of the chamber and barrel is good enough for me.

 

[Iowa Fox]

Don't waste your time polishing or breaking in anything. Give the barrel a thorough cleaning, oil the bore lightly with a bit of gun oil and shoot the sucker! Life's way too short to waste even a moment of it "breaking in" barrels.

My two bits worth,

Gene Beggs

X 2

 

[Aitch]

To break in or not to break in, that is the question.
What surprises me most is that there seems to be no objective evidence that either camp is right. Why is there not a study wherin a given barrel manufacturer produces two identical barrels and one is treated to the barrel manufacturers break in procedure and the other is treated to the "just shoot the sucker" technique. Then both barrels analyzed for accuracy, barrel ware, throat erosion and etc.

 

[JRS]

To break in or not to break in, that is the question.
What surprises me most is that there seems to be no objective evidence that either camp is right. Why is there not a study wherin a given barrel manufacturer produces two identical barrels and one is treated to the barrel manufacturers break in procedure and the other is treated to the "just shoot the sucker" technique. Then both barrels analyzed for accuracy, barrel ware, throat erosion and etc.

Research the articles written by McMillan. You'll find your answer. While you're at it, research the name Gene Beggs, also