Nemesis Lead Posted October 28, 2014 Share Posted October 28, 2014 Guys, Historically, I have always laboriously broken in my bolt gun rifle barrels and did the same with my JP CTR-02. My process involves firing a round, pushing a brush down the barrel, swabbing the barrel with JB compound, the running patches through until the patches are clean, and then repeating this THIRTY TIMES. This has always gotten me good results, but that is all I have ever done and know nothing else. I just picked up two more AR-15s and began to rethink this. I just worry a bit about JB compound getting into the gas system. What thoughts do people have on the matter? Does a barrel break in help and, if so, are there any issues in doing this with a gas gun? Link to comment Share on other sites More sharing options...
MarkCO Posted October 28, 2014 Share Posted October 28, 2014 Waste of time and energy and the barrel could be worse off if you do. Link to comment Share on other sites More sharing options...
LoganbillJ Posted October 28, 2014 Share Posted October 28, 2014 Waste of time and energy and the barrel could be worse off if you do. +1 Link to comment Share on other sites More sharing options...
ericm Posted October 28, 2014 Share Posted October 28, 2014 My process involves drinking a round, pushing a pinch of gerbil whiskers down the barrel, swabbing the barrel with urine from a black male cat obtained in October, then running patches made from dove feathers through until the patches are clean, and then repeating this UNTIL THE LANDLORD BANGS ON THE CEILING AND YELLS "TURN DOWN THAT DAMN PORN!" I DARE you to call that a Waste of time and energy... ericm Link to comment Share on other sites More sharing options...
kurtm Posted October 28, 2014 Share Posted October 28, 2014 Male cat,s??? You are perverted sir! Everyone knows it has to be a female! Link to comment Share on other sites More sharing options...
dauntedfuture Posted October 28, 2014 Share Posted October 28, 2014 I generally think its best to plug the muzzle and fill the bore with sweets 7.62 and leave it for a few days..... (don't do this) About all I do is clean the bore with some bore paste and solvent before I shoot to make sure there are no shavings or oil in the bore. Link to comment Share on other sites More sharing options...
TonytheTiger Posted October 28, 2014 Share Posted October 28, 2014 I generally think its best to plug the muzzle and fill the bore with sweets 7.62 and leave it for a few days..... (don't do this) About all I do is clean the bore with some bore paste and solvent before I shoot to make sure there are no shavings or oil in the bore.Sounds like a good story, care to share? Link to comment Share on other sites More sharing options...
Jaxshooter Posted October 28, 2014 Share Posted October 28, 2014 The break in for my AR barrels = shoot them. Link to comment Share on other sites More sharing options...
dauntedfuture Posted October 28, 2014 Share Posted October 28, 2014 I was shooting a highpower match on a Saturday and drove a few hours to a hotel Saturday night to shoot another match on Sunday. I did not have time to clean the rifle so I applied a liberal portion of Sweets to the bore and left it over night. Needless to say there was lots and lots of blue that came out of the barrel. The barrel never shot quite as well after that...... Leaving Ammonia solvents in a barrel can etch the steel. At least it was a worn Colt Hbar barrel and not something nicer. Link to comment Share on other sites More sharing options...
co-exprs Posted October 28, 2014 Share Posted October 28, 2014 I don't do very much either. I hit the bore with JB as part of the initial cleaning and then about every 1000rds after that. My first range session, I try to be nice and not get the barrel too hot. Link to comment Share on other sites More sharing options...
Graham Smith Posted October 28, 2014 Share Posted October 28, 2014 Do this ... don't do that .. stand up ... sit down ... Everyone has a different routine that is better than all the others - usually whatever they originally were taught. The most common recommendation I see for bolt guns from knowledgeable folks is this: If the maker has a recommended routine then do it. If not, then shoot 20 rounds at a modest pace, swab it out with a bit of mild solvent. Shoot 20 more and repeat the swabbing. You are now finished with the break in. Link to comment Share on other sites More sharing options...
GSonnen Posted October 28, 2014 Share Posted October 28, 2014 Does anyone every run copper solvent down an AR barrel? Link to comment Share on other sites More sharing options...
MarkCO Posted October 28, 2014 Share Posted October 28, 2014 My 1K clean uses GunSlick Pro. As I get closer to the end of life on a barrel, it takes more rounds to get back to POA after that cleaning. Link to comment Share on other sites More sharing options...
GunCat Posted October 28, 2014 Share Posted October 28, 2014 Just in case there are 3 people out there that have not read this yet... Link to comment Share on other sites More sharing options...
openclassterror Posted October 28, 2014 Share Posted October 28, 2014 Any barrel that shows a significant difference from an anal-retentive break-in process will not stand for the kind of abuse we put these rifles through. A couple of ridiculous hoser stages with 50 rounds down range in 15-20 sec is hot enough to melt copper off the jacket as the bullet goes down the bore. If your rifle accuracy isn't acceptable with a half ounce of copper getting pushed around the bore with every shot, you will be missing hits. That is a selling point for polygon rifling. Without the sharp corners for copper to collect, fouling is noticeably less in an abused rifle. At 1,500 rounds after cleaning my current barrel still gets 2MOA when blistering hot, with a bullet WAY too light for its twist rate. With good 69gr match bullets, it still shoots about 1MOA when clean/ cool, at about 20,000 rounds. Throat looks like hell. My break-in? Drag a dry bore snake through it to make sure the metal chips and oil were gone, and shoot it. For the record, it is a Noveske Stainless 16" 1-8twist poly with mid-length gas, fluted ahead of the gas block. I imagine it is approaching the end of its life, but I will use it until results are no longer acceptable. Link to comment Share on other sites More sharing options...
TonytheTiger Posted October 28, 2014 Share Posted October 28, 2014 Good read. I've always been of the opinion that for me to care even a little bit about break in or religious cleaning, someone would have to take 2 barrels made on the same day on the same machine out of the same batch of steel, fire a good 20000 rounds of the same load at the same rate/strings of fire, obviously one with regular use the other with all the dogmatic cleaning and such. Then at the end there would need to be a thorough test and a bunch of data compiled before it could convince me the neglected barrel won't be around 95% the condition of the babied one. And then I still wouldn't care. Link to comment Share on other sites More sharing options...
Flatland Shooter Posted October 28, 2014 Share Posted October 28, 2014 I follow the procedure Black Hole Weaponry recommends on their new barrels. Shoot 5 rds and clean. Continue through the first 60 rds. I'll load up several bullet and powder combinations and run these rounds over the chrono. After the first 30 rds I get serious about the accuracy (mount an 18x scope). It may not help my accuracy, but if I don't do the break-in and its shoots like crap, its too late to wish I'd taken the time to break it in. As for the time it takes, heck, I'm retired. Its either this of doing yard work. Bill Link to comment Share on other sites More sharing options...
EaZeNuTZ33 Posted October 28, 2014 Share Posted October 28, 2014 Just in case there are 3 people out there that have not read this yet... My PC caught that link as "possibly dangerous"......hmmmmm My break in process involves sighting the gun in, shoot some offhand steel at 50-100yds.....shooting the steel until my arms are tired, then shooting pistol and shotgun while my rifle cools, then shooting to see if my zero shifted or groups opened up, then shooting through the chrono, then shooting at 200-400 yards on a small gong with where my expected drop would be. When I'm done, I enjoy a Sam Adam's beer (and maybe a popsicle if it was hot outside). Link to comment Share on other sites More sharing options...
TonytheTiger Posted October 28, 2014 Share Posted October 28, 2014 I feel that it's unfair and misleading to the new barrel to treat it in any way different in the first 100 rounds than its going to be treated for the remainder of its lifespan. Kinda like starting a new job and everyone is super nice for the first month..... Link to comment Share on other sites More sharing options...
MarkCO Posted October 28, 2014 Share Posted October 28, 2014 When I'm done, I enjoy a Sam Adam's beer (and maybe a popsicle if it was hot outside). If you can find Sam Adam's Maple Pecan Porter, use it to make yourself a nice milkshake. Your rifles will be more accurate the next day. Link to comment Share on other sites More sharing options...
EaZeNuTZ33 Posted October 28, 2014 Share Posted October 28, 2014 When I'm done, I enjoy a Sam Adam's beer (and maybe a popsicle if it was hot outside). If you can find Sam Adam's Maple Pecan Porter, use it to make yourself a nice milkshake. Your rifles will be more accurate the next day. I'm lactose intolerant, or I should say that my wife's nose is intolerant of how I handle lactose.....but this may be worth sleeping on the couch! Link to comment Share on other sites More sharing options...
Sterling White Posted October 28, 2014 Share Posted October 28, 2014 Barrels need to be broke in? With milkshakes and smelly farts that keep you on the couch? Link to comment Share on other sites More sharing options...
TonytheTiger Posted October 28, 2014 Share Posted October 28, 2014 Mmmm, Sam Adams. You guys are making me thirsty. Too bad I quit drinking.... Link to comment Share on other sites More sharing options...
EaZeNuTZ33 Posted October 28, 2014 Share Posted October 28, 2014 nobody likes a quitter Link to comment Share on other sites More sharing options...
openclassterror Posted October 28, 2014 Share Posted October 28, 2014 I quit drinking last night. Because I fell asleep......... Will probably start again tonight Link to comment Share on other sites More sharing options...
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