I haven´t got my scope yet so right now I cant tell how it shoots.
On my 308 which have a Lothar Walther barrel I hardly ever get any copper in it and I guess im spoild by that. :-) But then thats a custom barrel.
To shed some light about barrel break in. Everybody has a different way.This is what works best for me. Clean barrel before shooting the gun with hoppes. Then use iosso bore cleaner,10 to 15 short strokes in throat only. New patch with iosso short strokes one pass through barrel. Clean barrel with lighter fluid.Then us JB with the same steps as above. Most barrels have very uneven cuts on the throat. Most copper is scraped off here and the plasma heat created by powder burn liquidfies the copper and starts laying it down about the tip of of the forend to the crown. don't use strong chemicals! I also don't care for use of a brush. I hope this will help. P.S. I can't spell so let's get this behind us. As a farmer @ builder of things that are related with this website,i hope these is imformation you can use.
To shed some light about barrel break in. Everybody has a different way.This is what works best for me. Clean barrel before shooting the gun with hoppes. Then use iosso bore cleaner,10 to 15 short strokes in throat only. New patch with iosso short strokes one pass through barrel. Clean barrel with lighter fluid.Then us JB with the same steps as above. Most barrels have very uneven cuts on the throat. Most copper is scraped off here and the plasma heat created by powder burn liquidfies the copper and starts laying it down about the tip of of the forend to the crown. don't use strong chemicals! I also don't care for use of a brush. I hope this will help. P.S. I can't spell so let's get this behind us. As a farmer @ builder of things that are related with this website,i hope this is imformation you can use.
Im in the process of breaking in my new Rem 700 ADL in 300wm.
So far I have fired 10 rounds with cleaning in between each round
and to day I fired the first 2 shot series and doing the cleaning right now.
It removes all the copper after I have removed the carbon with Shooters Choise or Ed´s Red.
Tha question is, will it ever stop collecting copper, I mean it still coppers after one single round? I will continue to shoot 2 rounds and clean now for another 8 rounds.
I mean this not a flame but to help. Stop this insanity of barrel breakin especially with a factory barrel, not to mention you’re shooting a 300 WM which has a very limited and short barrel life to begin with.
Barrel breakin is a myth and a waist of time and effort. Now before anyone jumps up and down, show me hard core evidence i.e. progressive enhanced bore scope evidence that cleaning after every round is actually doing something. There’s just no such thing as breaking in a barrel. About the only thing it can help with is smoothing the chamber transition into the throat area but using a bore scope we haven’t seen any real evidence that cleaning is making a difference. Ever barrel is different and a factory barrel is a crap shoot, but after x number of rounds the throat and chamber area transition together and any sharp machine edges from cutting the chamber smooth out.
This will help smooth the chamber and throat area transition and help smooth out the inside of the barrel to a degree. Most of the polishing of the barrel will be in the throat area and few inches past the throat and the rest of the barrel will also see some benefit also.
If you decide to use Tubb’s Final Finish, don’t fret it you still get a little copper fouling. That’s not always a bad thing. The little bit of copper fouling you get is probably filling in any micro grooves that the Final Finish didn’t get out and it helping to smooth the barrel out.
Best if luck and let us know how it goes.
Distance is not an issue, but the wind will make it interesting!
You are not looking for bore scope evidence. You are seeking to eliminate any burrs or defects that can pick up copper which cause the bullet rotate in an imbalanced state.
Basically the cleaning process is gently eliminating the rough edges. Heck, some guys just take five bronze brushes and stroke each 100 times back and forth. This too works as it smooths out the rough edges.
The most recent one I did was a factory 338RUM Sendero and when I was breaking in the barrel, I shot all the shots on the target at 100 yards. The gun started shooting tight groups (at shot 35) when the fouling greatly diminished. I guess more of the bullet was exiting the barrel than being left behind. Anyway we got that factory rifle to shoot sub 3/8" with 225gr Accubonds @ 3100fps and we rarely see any copper at all during the cleaning process.
So, in short, it may be a myth or even an evil plot by the gun cleaning supply business to sell more product, but in every centerfire barrel I have ever used and competed with as well as any barrel I tuned for friends, they really started shooting when the barrel quit copper fouling.
At 200,000 rpm, it doesn't take much to upset the stability of the bullet by changing it's center of mass when you leave some of it in the barrel.......
The following is a listing of custom barrels that have benefited from barrel break-in (Kreiger, Douglas, Schneider, Hart, Lilja, K&P and McMillan):
338-378, 338 Lapua Improved, 338 Lapua, 338 RUM, 30-378, 30-338 Lapua Improved, 30-338 Lapua, 308 Hammonds (x2), 6x284, 7mm-08 imp, 25-06, 25-06 Imp, 30-06 Imp, 25x284(x2), 22-6mm, 22 Lapua (x3), 22 PPC, 6mm PPC (x12 +,-). I am sure I have missed listing some. And, I have a dozen or so waiting to be broken in as well. If any one of them does not repond to barrel break-in, I will report it on this thread. If you don't see any additional posts by me, you will know that the process continues to work here in SC.
Almolst forgot.......... When we do factory barrels, they respond better (takes a little longer) than the custom variety .
Those who debate the effectiveness of break in obviously have never done it. No matter how smooth or lapped a barrel is, if it has a chamber, it will have burrs where the reamer stopped. PERIOD. You can shoot them out with a thousand rounds without cleaning and take your chances with accuracy or you can break it in and "waste" 10 or 20 shots and get accuracy and easy cleaning immediately.
And proof is in the testing. If breakin did nothing, then what is to explain the sudden reduction of cleaning time and/or the sudden change in POI when it happens?