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Life of barrel springfield national match

This is a discussion on Life of barrel springfield national match within the Accuracy forums, part of the M14 M1A Forum category; Hello everyone, I have owned a M1A SPRINGFIELD NM for 2 years already, I like it very much my rifle and I take great pleasure ...


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Old February 1st, 2017, 10:42 AM   #1
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Life of barrel springfield national match

Hello everyone,
I have owned a M1A SPRINGFIELD NM for 2 years already, I like it very much my rifle and I take great pleasure to shoot with.
Only, I wonder how many shots I can make with before the barrel loses its accuracy: 5,000 shots, 10,000 plus. I only use it with quality bullets (google translate)
Thank you for your answers and have a good day

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Old February 1st, 2017, 11:16 AM   #2
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Depends on how fast it is shot, rapidly means more heat & wear. How often and how is it cleaned. Lots of variables. Hard to predict how long. Use a muzzle gauge and look for group size opening up.

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Old February 1st, 2017, 11:33 AM   #3
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Almost an impossible answer to your question other than it is a fact that the barrel will wear out providing enough rounds are put through it, figured you knew that, but as to exactly what number of rounds that will take depends on the use it receives. I know of some M1A match shooters who will shoot far more than a casual shooter have gotten near 6,000rnds. before the accuracy really went away, but that is unusual in my opinion.
From my experience in shooting bolt guns in Long Range competition the gilt edge accuracy I experienced upon new lasted for some 2500rnds or so. Having reached that point in it's life did not mean that the barrel was completely gone and served well enough that I kept shooting it for another approximately 2000rnds. or so more. The throat of the bore takes a lot of heat and it will wear meaning that the bullet has a greater jump into the rifling than it did when new. It is helpful that you keep notes on how many rounds you shoot and just a guess but would imagine the barrel would call for replacement in the 4500-5000rnd. range. If a casual shooter that is a lot of rounds and as mentioned not overheating the barrel will extend it's useful life. Just a suggestion.

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Old February 1st, 2017, 11:46 AM   #4
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So, according this article - 10 seconds.
The title caught my attention.

http://www.accurateshooter.com/techn...t-barrel-life/

That time is approximate for .308 which equates to around 5,000 rounds. Depending on the velocity of your loads. I have a buddy who fires HOT loads through his 300RUM. I bet his barrel life is only a couple of seconds.

Interesting way to view barrel life.

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Old February 1st, 2017, 11:50 AM   #5
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About 32 pounds of powder in competition match loads

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Old February 1st, 2017, 01:10 PM   #6
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Quote:
Originally Posted by French Ranger View Post
Hello everyone,
I have owned a M1A SPRINGFIELD NM for 2 years already, I like it very much my rifle and I take great pleasure to shoot with.
Only, I wonder how many shots I can make with before the barrel loses its accuracy: 5,000 shots, 10,000 plus. I only use it with quality bullets (google translate)
Thank you for your answers and have a good day

I'm on my 2nd NM barrel, I made it up to ~9k before I saw the groups start to open up and accuracy left me for good on the first NM barrel from Springfield Armory. I'm on the 2nd NM barrel now and I'm still enjoying the accuracy. It's a heavy Krieger barrel and short chamber cut. I'm at ~5K rounds down range so far on it...


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Old February 1st, 2017, 01:27 PM   #7
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It is said that a pound of powder for the 308 will give approximately 150rnds./lb. and 32lbs. would be equal to 4800rnds. Compare that to the 223 which is 300rnds/lb. Your mileage may vary, but the 5000 number seems to be the answer. Have access to optical bore inspection equipment and it would shock you to look through a bore with only 2000rnds. or so through it, lots of fissures, tiny pits, etc., yet they still shoot ok. Routine rapid fire as in High Power matches generates a lot of heat and a primary reason for wear plus over cleaning or improper cleaning contributes to the life of a barrel. In long range matches with 20rnds. in 20 minutes the barrel is hot enough to burn your hand if touching the barrel and that is one reason I use a golf glove and another reason is that it gives me a surer grip on the stock itself even with stippling in that area of the stock.

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Old February 1st, 2017, 03:57 PM   #8
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I think the best idea is to purchase 2 or 3 more M1a's and spare your barrel the abuse of 5,000 rounds. I know I won't be satisfied with only 1 M1A.
My next one will be a Fulton Armory that I will build. Can't wait. I just need a bigger bag of money.

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Old February 1st, 2017, 10:55 PM   #9
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Quote:
Originally Posted by janderso57 View Post
I think the best idea is to purchase 2 or 3 more M1a's and spare your barrel the abuse of 5,000 rounds. I know I won't be satisfied with only 1 M1A.
My next one will be a Fulton Armory that I will build. Can't wait. I just need a bigger bag of money.
It's a good idea, but then I have to live in the USA. This rifle is practically not found now in France and when it is for sale it is very very expensive. I was lucky to find my national match in Germany so change the barrel not possible ....

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Old February 2nd, 2017, 04:23 AM   #10
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It's a good idea, but then I have to live in the USA. This rifle is practically not found now in France and when it is for sale it is very very expensive. I was lucky to find my national match in Germany so change the barrel not possible ....
You or a gunsmith can change the barrel with very little effort and a few tools.
You need 4 things to replace a barrel besides the barrel itself.
A barrel vise, an action wrench, a set of Go, No Go gauges and a pull through finish reamer.

There are also many YouTube videos on how to do it.

Edited to add that barrels can be legally exported from the USA with the proper paperwork.
You can call and speak to Sandy Moranville at Brownells international department.
An export license costs around $250 but Brownells can sell you everything you need from the barrel to the tools.
If you plan on keeping and shooting it for many years order 2 barrels at the same time.

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Old February 2nd, 2017, 04:39 AM   #11
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And don't forget to buy a case of 5000 primers dedicated for every new barrel, it sure makes strict round count tracking that much easier.

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Old February 2nd, 2017, 05:14 AM   #12
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French Ranger could answer this, but some Nations in Europe the firearm serial number is the barrel, not the receiver and to change the barrel requires same process as buying another firearm, if it is even possible. Whether France is like this or not, don't know??

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Old February 2nd, 2017, 05:35 AM   #13
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A major factor about how quickly a barrel 'wears' is the MV and bullet weight. For longer 'good accuracy' barrel life, use bullets 156 grain and less, and only enough MV to obtain the accuracy you feel is acceptable.
For ME, if the bullet POI is 'on call', then the accuracy is ok.

And avoid 'rapid shooting' that makes the barrel very hot.

For 'target shooting' at distances of 300m and less, moderate MV of about 2400fps is adequate.

Jay Kosta
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Old February 2nd, 2017, 12:17 PM   #14
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Quote:
Originally Posted by JayKosta View Post
A major factor about how quickly a barrel 'wears' is the MV and bullet weight. For longer 'good accuracy' barrel life, use bullets 156 grain and less, and only enough MV to obtain the accuracy you feel is acceptable.
For ME, if the bullet POI is 'on call', then the accuracy is ok.

And avoid 'rapid shooting' that makes the barrel very hot.

For 'target shooting' at distances of 300m and less, moderate MV of about 2400fps is adequate.

Jay Kosta
Endwell NY USA
When i use to shoot service rifle , you had no choice in heating up the barrel.
Shooting out in the open with the hot summer sun beating down on you and the rifle plus rapid fire stages , i could not even touch the barrel with out getting burned.

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Old February 2nd, 2017, 01:27 PM   #15
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Quote:
Originally Posted by Travis Bickle View Post
... plus rapid fire stages , i could not even touch the barrel with out getting burned.
-----------------
Yes the RF stages of a HP match do get the barrel pretty hot!
But they are 10-shot strings in about 60 seconds, and then a several minute break before doing the 2nd string of 10.

I'd definitely avoid things like seeing how fast a 20 round mag can be shot ...

Jay Kosta
Endwell NY USA

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