2009 Poly barrel life?
- Thread starter TACTICAL111
- Start date
Id bet you haven't been shooting it enough to ruin the barrel, especially a chrome lined one in that amount of time,not unless you are shooting it so hot and so often your stock is burnt up like a piece of charcoal. Im going to have to say that the culprit is most likely copper fouling in the bore. Get some nitro solvent and a good bronze bore-brush or boresnake and get your elbows working.
Ive got over 1000 rounds in mine and its barely broke in. They should last 10,000 rounds or so depending on how much you let the barrel heat up for extended periods of time.
Ive got over 1000 rounds in mine and its barely broke in. They should last 10,000 rounds or so depending on how much you let the barrel heat up for extended periods of time.
The above poster is probably right: you're problem is most probably copper fowling unless you were careless while cleaning your rifle.
A 308 Win's accurate barrel life is 3000-4000 rounds and you'll still be able to hit a targert after 7000-8000 rounds but most of the rifling will be gone by then.
An interesting link on barrel wear for 6.5x55 (very similar to 7.62 barrel wear)
http://www.norma.cc/en/Ammunition-Academy/Barrel-wear/
Alex
A 308 Win's accurate barrel life is 3000-4000 rounds and you'll still be able to hit a targert after 7000-8000 rounds but most of the rifling will be gone by then.
An interesting link on barrel wear for 6.5x55 (very similar to 7.62 barrel wear)
http://www.norma.cc/en/Ammunition-Academy/Barrel-wear/
Alex
Avalonthas
CGN Ultra frequent flyer
- Location
- Toronto ON
Its more of an experience thing then anything. You look down your bore to see the rifling, how the lands and groves look compared to when you bought it originally (if you recall).
If you can still distinguish the rifling then shoot away!
You find someone with a borescope!
The results will be fightening, the first 1-6" of the barrel might be completely smooth.
You can do what you want but every shot fired is one step closer to a useless barrel like every hearthbeat brings you closer to God
What kind of groups are you getting right now?
What kind of groups were you getting at around 1000 rounds fired?
Alex
I really can't recall.
It hit it's peak at around 3-3500 with the best Lapua hand loads I could muster.
It would float around 1 to 2 MOA (as long as I did my part
) Was able to get .5 MOA from time to time (and I mean from time to time)
Struggling to get 6-7 MOA. Significant enough to post this thread. Same loads, same shooter, same rifle.
What should the typical barrel life be for a stock 2009 Poly M1A?
My shot patterns have been getting progressively worse over the last few months so I'm just curious.
Cheers
Hey man, your gun is toast...
here are the good news: will give you 50 bucks for it, if you come up with shipping.
What ya think man?
I really can't recall.
It hit it's peak at around 3-3500 with the best Lapua hand loads I could muster.
It would float around 1 to 2 MOA (as long as I did my part
Was able to get .5 MOA from time to time (and I mean from time to time)
Struggling to get 6-7 MOA. Significant enough to post this thread. Same loads, same shooter, same rifle.
There's no problem with the rifle but the barrel is finished and needs to be changed.
There's not much that you could have done to make it last much longer but rapid fire and overheating a barrel can cut a barrel's accurate life by more that the 2/3! (you get 1500 accurate shots rather than 4000).
Your barrel is most likely like the one with 10,000 rounds fired
http://www.norma.cc/en/Ammunition-Academy/Barrel-wear/
Alex
Oldsmobiler
CGN Regular
- Location
- Coquitlam, BC
throat erosion and muzzle wear are the two ways to measure the wear on these rifles. Both require gauges to properly measure. But I betcha that with that many rounds the throat is wasted LOL!
- Location
- big sky country
If your shooting semi-auto (which I assume you are) the barrel will likely last longer than you.
Oldsmobiler
CGN Regular
- Location
- Coquitlam, BC
Muzzle wear gauge
Throat erosion gauge
Throat erosion gauge
Think you should have been a banker
Will that work with the stock flash hider in place? I've never removed it.
Thanks Olds, I'm in uncharted territory myself
Most likely learn something new, which is all good
Interested in picking those up as they would be good to have regardless.
Oldsmobiler
CGN Regular
- Location
- Coquitlam, BC
Seeing how I've yet to waste a barrel they are next on the list for tools. Always shot new barrels and sold the rifles before I got up to the number you have. Best to measure when new as a benchmark so you know when things start wearing. Then again the best measure is the target you are shooting at. Measuring don't mean squat if its still shooting like a hot damn
To use the gauge you need to take off the flash hider. Muzzle wear can usually be corrected with a new crown and you're back to fresh..however throat erosion pretty much makes the barrel scrap. No biggie...good excuse to rebarrel and make it better
To use the gauge you need to take off the flash hider. Muzzle wear can usually be corrected with a new crown and you're back to fresh..however throat erosion pretty much makes the barrel scrap. No biggie...good excuse to rebarrel and make it better
Yah, this thread is a bit of a "wow". Same gun, that much later, I wish I had the 4 or 5k to put together that many rounds in less than two years.
Hope the doc or one of the other chaps will have a Chinese barrel for sale cheap.
FWIW, on a chrome lined barrel, you will immediately see throat erosion if you have a chamber mirror as the chrome will be flaked away for the first few inches of bore. Once a CL barrel starts shedding chrome at the throat, it's toast for all but reckless blasting.
Have to agree with Olsmobiler. My guess would be a burned out throat as well.
I do have a good selection of new unfired chinese barrels, although I did take the add down. I also have a couple excellent take off usgi barrels stashed away... And we have McGowen M14 match barrels coming in the new year.
I do have a good selection of new unfired chinese barrels, although I did take the add down. I also have a couple excellent take off usgi barrels stashed away... And we have McGowen M14 match barrels coming in the new year.
