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Posted: 7/15/2009 7:30:19 AM EDT
| ok, i just picked up my new S&W M&P15 the other day, and i am wondering if barrel break in would be the same as DPMS tells you to do. No where in my S&W Book does it talk about barrel break in. But for my DPMS it has it all listed in the book. Should i just do what i did on my DPMS or what do you guys recomend? |
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ok, i just picked up my new S&W M&P15 the other day, and i am wondering if barrel break in would be the same as DPMS tells you to do. No where in my S&W Book does it talk about barrel break in. But for my DPMS it has it all listed in the book. Should i just do what i did on my DPMS or what do you guys recomend? Barrel break in arguments take on an almost religious fervor. There are those that think you have to break in a barrel properly or it will never shoot to it's potential, and there are those that think barrel break in only wears out your barrel faster. Neither one can prove their point. If you want to break it in, follow the DPMS instructions. I don't think it's necessary, especially in a chrome lined AR15 barrel, but if you do it properly with quality cleaning equipment I don't think it hurts anything (at least no more than firing the same number of rounds will) |
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People argue over proper break-in procedures for all sorts of equipment, NOT only barrels. Guess what, overwhelmingly you find the most informed opinions always recommend;
Unless the manufacturer recommends a specific procedure, Operate like normal to do a proper break-in, avoid any stressful, pushing it to the limits type operation until the equipment is broken-in. A break-in for the barrel and the rest of the rifle does happen, its just that you do NOT need to do anything special to do that break-in, just operate like normal. Perhaps it would be wise to avoid mag dumps until you've shot a hundred rounds or more. Many firearms come from the manufacturer coated with preservative that might cause problems if you shoot with it in it. So, I also agree it good practice to clean the weapon before shooting the first time, to make sure any gunk that collected in the barrel/chamber in shipping or sitting in a warehouse is removed along with the "other than good lube" that may be in the rifle. Some of the super finely crafted match barrels may have some specific break-in procedures, even then many argue those are a waste of time, most of your service barrels do NOT, or the manufacturer is just tossing out a rule of thumb, that others disagree with as well. Also keep in mind, many agree, if the barrel/chamber is chrome lined, forget about break-in completely, the harder/smoother chrome's wear properties are such that you're not achieving anything with some sort of cleaning regime the first couple of shots. |
| Check Noveske's site. They claim to have found no benefit to a "break in" procedure. I would say that since most beleive that they produce some of the best barells available, that they know what the hell they are talking about. Personally, I have no clue if it helps or not. The best I could do was defer to someone who does this shit for a living. Sorry I could'nt be of more help. |
| Check Noveske's site. They claim to have found no benefit to a "break in" procedure. I would say that since most beleive that they produce some of the best barells available, that they know what the hell they are talking about. Personally, I have no clue if it helps or not. The best I could do was defer to someone who does this shit for a living. Sorry I could'nt be of more help. |
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No breaking required for a chromelined barrel.
Noveske may find no benefit to breaking in HIS barrels. Krieger uses a different method of cutting rifling and creating the chamber/throat. they do find that extra attention in the first rounds is helpful. kriegerbarrels.com click on breakin. |
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No breaking required for a chromelined barrel. Noveske may find no benefit to breaking in HIS barrels. Krieger uses a different method of cutting rifling and creating the chamber/throat. they do find that extra attention in the first rounds is helpful. kriegerbarrels.com click on breakin. And Gale McMillan thought the exact opposite. YMMV It's a CL carbine, not a high power rifle. Jay |
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http://yarchive.net/gun/barrel/break_in.html
"From: Gale McMillan <" gale"@mcmfamily.com> Newsgroups: rec.guns Subject: Re: Barrel break-in necessary? Date: 7 Jan 1997 20:40:25 -0500 Mike Sumner wrote: > ... As a barrel maker I have looked in thousands of new and used barrels with a bore scope and I will tell you that if every one followed the prescribed break in method A very large number would do more harm than help. The reason you hear of the help in accuracy is because if you chamber barrel with a reamer that has a dull throater instead of cutting clean sharp rifling it smears a burr up on the down wind side of the rifling. It takes from 1 to 2 hundred rounds to burn this bur out and the rifle to settle down and shoot its best. Any one who chambers rifle barrels has tolerances on how dull to let the reamer get and factories let them go longer than any competent smithe would. Another tidbit to consider, Take a 300Win Mag. that has a life expectancy of 1000 rounds. Use 10% of it up with your break in procedure for ever 10 barrels the barrel maker makes he has to make one more just to take care of the break in. no wonder barrel makers like to see this. Now when you flame me on this please include what you think is happening to the inside of your barrel during the break in that is helping you. Gale McMillan NBSRA IBS,FCSA and NRA Life Member –––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––– From: Gale McMillan <[email protected]> Newsgroups: rec.guns Subject: Re: Good barrels for Rem 700 in .308? Date: 10 Feb 1996 12:50:53 -0500 Consider this, every round shot in breaking in a barrel is one round off the life of said rifle barrel. No one has ever told me the physical reason of what happens during break in firing. In other words to the number of pounds of powder shot at any given pressure, is the life of the barrel. No one has ever explained what is being accomplished by shooting and cleaning in any prescribed method. Start your barrel off with 5 rounds and clean it thoroughly and do it again. Nev Maden a friend down under that my brother taught to make barrels was the one who come up with the break in method. He may think he has come upon something, or he has come up with another way to sell barrels. I feel that the first shot out of a barrel is its best and every one after that deteriorates until the barrel is gone. If some one can explain what physically takes place during break in to modify the barrel then I may change my mind. As the physical properties of a barrel doesn't change because of the break in procedures it means it's all hog wash. I am open to any suggestions that can be documented otherwise if it is just someone's opinion forget it. Gale McMillan –––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––– From: Gale McMillan <" gale"@mcmfamily.com> Newsgroups: rec.guns Subject: Re: Remington 700 break in Date: 8 Aug 1997 00:01:07 -0400 Arthur Sprague wrote: # On 29 Jul 1997 22:50:26 -0400, [email protected] (John W. Engel) # wrote: # # #This is how (some) benchrester break in barrels, and it does work. # #The mechanism is that the bore has pores in it (microns in size). # #If you simply shoot a box or two through it without cleaning, the # #pores fill up with gilding metal, and stay that way. If you # #follow the above procedure (and they mean *clean* between shots!), # #the pores are "smoothed over" with each successive shot. A barrel # #correctly broken in is MUCH easier to clean than one that is # #not. If it is a good quality tube, it will also be more accurate. # #Regards, # #whit # # Well, the range hours here are quite limited. On my first trip I # managed to fire a whole fourteen rounds, with a thorough cleaning # after each round. It couldn't hurt! Fun gun! Difficult to think of # .223 as a battle round after experience with .30-06 and .45ACP, but it # surely going to be a pleasure to shoot. # Thanks to all for their advice. This is total hogwash! It all got started when a barrel maker that I know started putting break in instructions in the box with each barrel he shipped a few years ago. I asked him how he figured it would help and his reply was If they shoot 100 rounds breaking in this barrel that's total life is 3000 rounds and I make 1000 barrels a year just figure how many more barrels I will get to make. He had a point it defiantly will shorten the barrel life. I have been a barrel maker a fair amount of time and my barrels have set and reset bench rest world records so many times I quit keeping track (at one time they held 7 at one time) along with HighPower,Silloett,smallbore national and world records and my instructions were to clean as often as posable preferably every 10 rounds. I inspect every barrel taken off and every new barrel before it is shipped with a bore scope and I will tell you all that I see far more barrels ruined by cleaning rods than I see worn out from normal wear and tear.I am even reading about people recommending breaking in pistols. As if it will help their shooting ability or the guns. Gale Mc." |
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Many firearms come from the manufacturer coated with preservative that might cause problems if you shoot with it in it. So, I also agree it good practice to clean the weapon before shooting the first time, to make sure any gunk that collected in the barrel/chamber in shipping or sitting in a warehouse is removed along with the "other than good lube" that may be in the rifle. I agree, and is the one thing I do with any new/used gun as soon as I get it... same with magazines. Always a good practice. |
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I always clean the rifle before shooting the first time. Next I shoot 5 to 10 rounds then do a quick field cleaning using a Bore Snake or whatever method one finds best.
At this time I inspect the gun to see if there are any problems or defects that might only show up under fire. Continue normal use for the rest of the session then take it home and give it a thorough cleaning and another inspection. If the gun comes through with no problems it is unlikely to have any problems in the foreseeable future. Some guns don't shoot their best until they have had 100 or 200 rounds though them. Others shoot well right out of the box. There's no sure way to know. |
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