Warning

 

Close

Confirm Action

Are you sure you wish to do this?

Confirm Cancel
Member Login
Posted: 3/28/2006 11:59:58 AM EDT
What's an average life span for an m1a, Round count before something major breaks or the barrel is done?
Link Posted: 3/28/2006 12:15:45 PM EDT
I have heard 15,000 rounds on a barrel, 150,000 rounds on a reciever.

However I am not sure about that.
Link Posted: 3/28/2006 12:19:25 PM EDT

Originally Posted By KnightofTheOldeCode:
What's an average life span for an m1a, Round count before something major breaks or the barrel is done?



The different parts have different life spans and that depends on how used or new the parts are when you start counting. Pretty much all the usgi parts you see out there are used parts and the wear can vary. A good receiver should last about 400,000 to 450,000 rounds, barrels last depending on how much accuracy you want and what they gave in the first place. A chromelined barrel can give you it's best accuracy longer than a non chromelined, but a nonchromelined will be more accurate on average than a chromelined will. General numbers would be around 12,000 to 15,000 for a chromelined barrel and 7000 to 10,000 for a non. Alot of that depends on the shooter too and how he/she maintained it and cared for it.
You can read some of the best information on the M14 around on Different's website and in the book he wrote.

Different's history of the M14
Link Posted: 3/28/2006 12:41:30 PM EDT
Replacing your op rod spring every so often will help as well
Link Posted: 3/28/2006 12:46:29 PM EDT

Originally Posted By RMPSTRAT:
Replacing your op rod spring every so often will help as well



I bought a few extra oprod springs when I got my M1A last year. What would you call "every so often"? Will there be a noticable decline in their strength?
Link Posted: 3/28/2006 12:51:03 PM EDT

Originally Posted By RMPSTRAT:
Replacing your op rod spring every so often will help as well



Try Tubb's chrome silicon springs out and you won't need to change them as often or maybe not at all for as long as you own the rifle. I love the set I bought a while back that already have a couple thousand rounds on them. They make my rifle run great and from the lack of compression I've seen on them from that time gone by, should last a very long time.

Superior Shooting springs

Link Posted: 3/28/2006 2:10:25 PM EDT
maybe about every 3000 rds or so. If you look at a op rod spring that has been in for a a lot of rounds ( thousands ) you'll notice that the sides are worn flat. This will reduce the weight of the spring. In 1911 circles for comparison: Look at a 8lb recoil spring next to a 18.5lb recoil spring notice the diameter of the spring wire. Some say don't change springs that often but they'll cheap when you really look at it. Better than buying a new gun
Link Posted: 3/28/2006 3:12:51 PM EDT
[Last Edit: 3/28/2006 3:17:29 PM EDT by H2O_MAN]

Originally Posted By Achilles1:
Try Tubb's chrome silicon springs out and you won't need to change them as often or maybe not at all for as long as you own the rifle. I love the set I bought a while back that already have a couple thousand rounds on them. They make my rifle run great and from the lack of compression I've seen on them from that time gone by, should last a very long time.



+1

I have Tubb's CS springs in my MK14. The op rod spring fits nicely over my SADLAK NM spring guide.
This combo should provide excellent performance for thousands of rounds.

Spare parts for the bolt and trigger group should be all you need for a long service life.
Link Posted: 3/28/2006 4:36:25 PM EDT
Some older M-1A receivers are reportedly pushing a qtr million rds. Rebarreled and rebuilt many times over.
Link Posted: 3/28/2006 5:04:08 PM EDT
I think a lot depends on what accuracy you expect from the rifle. A true match shooter might change out the barrel every 3000-4000 rounds because he can see the accuracy difference. But for someone who is shooting an un-accurized rifle with milsurp ammo, the accuracy dropoff of that same worn barrel may not be as apparent.
Link Posted: 3/28/2006 7:48:56 PM EDT
[Last Edit: 3/28/2006 7:49:37 PM EDT by Achilles1]

Originally Posted By steveinct:
Some older M-1A receivers are reportedly pushing a qtr million rds. Rebarreled and rebuilt many times over.



If you just think about that, about how long these rifles will be there running strong, that's what makes them so great, that's what makes them better than others.
Yeah, you'll change out parts and barrels, but that rifle will be here long after your gone.
Ah that beautiful steel receiver, how I love it.
Link Posted: 3/29/2006 6:25:43 AM EDT
I have a little over 18K rounds in my M1A, with a TRW barrel, that I used for HP matches before I retired it and used my newly built M1A.. even after 18K rounds.. it will still hold the 10ring on a SR target offhand... the difference I saw was at 600yds... :( with that many rounds through it...
Top Top