Author Topic: barrel life on assult weapons  (Read 438 times)

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Offline Ct Kid

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barrel life on assult weapons
« on: April 23, 2004, 02:11:36 PM »
I was at the the local  range last sunday and there were many AK types and AR-15 types.There was a lot of serious shooting going on, my question is when you do mag after mag with these rifles, When is to hot for the barrel  and how does it hurt the rifle.

Offline 1911crazy

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barrel life on assult weapons
« Reply #1 on: April 23, 2004, 02:59:28 PM »
A barrel on these should last for 10,000rds but using corrosive ammo and wether the barrel is chromed or not matters too but over heating the barrel shortens the life of it too.  I like to run one mag and give the gun a break by switching to another one while the one i just shot cools off even if its an SKS with the orginal 10rd mag. or I may put a few minutes between shots to let it cool down too. I don't like to heat my barrels to the point i can't touch them.
                                                                              BigBill

Offline Runs with Scissors

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barrel life on assult weapons
« Reply #2 on: April 24, 2004, 05:42:33 PM »
When I was in Viet Nam in 1970 we generally ruined M16 barrels every month. I had 7 different M16's when I was there. Your best information came at night when you would see your tracers corkscrew. We replaced both of our 30 cal barrels after any contact.
There were a lot of things about Nam that bothered me. But the armorers treated us very well.

Bill
Measure twice. Cut once.

Offline His lordship.

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I go about 1-2 shots, then glass the target.
« Reply #3 on: April 25, 2004, 06:50:33 AM »
I have 2 AK-47's and what I do is load a 10 round magazine, then carefully fire 1-2 rounds, let the butt of the rifle sit against my shoulder while still mounted on my front rifle rest, then check with my binoculars the effect of the two shots at 50-100 yards.  This technique allows me to really monitor each shot, and the barrels stay cool.

The Ak design cools down the fastest out of any centerfire rifle I have shot, as they don't have a scope it causes me to check my shots and hesitate after using the binoculars.  Both of these rifles are accurate, the Russian Saiga rivals several of my bolt actions in accuracy.
 
For some weird reason my Swedish Mauser Model 96 would heat up quickly, and would stay hot for quite awhile.  This is one of the reasons I got rid of it.  The last time I shot it I would fire 5-10 rounds of factory loads, and the barrel would stay very warm for up to 15 minutes, I have heard the Swede 6.5 has a high coefficience, so that may explain the heating problem.  It got so hot that the wooded hand guard actually was painful to touch due to the heat, you can imagine what the barrel inside the wooden area was experiencing.  If Sweden had gone to war in the Summer time I think they would have had a disaster on their hands with the scorchingly hot barrels.  My Mauser 98's get hot, but not nearly like the Swede guns.

Offline mikej

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barrel life on assult weapons
« Reply #4 on: April 25, 2004, 11:11:57 AM »
If you're shooting a rifle that has a chrome plated bore, which almost all SKS/AK47 and Military FAL's have, and some AR-15's have, (Bushmaster and some older Colts) you will get around 10,000 rounds before you get serious erosion of the barrel throat. That is, if you shoot in a fairly sane manner. By that I mean no 20-40 shot strings of rapid fire with no cool down time. I use my AR 15 for highpower match shooting and the most rapid fire we do is two to four 10 round rapid fire strings in 60 or 70 seconds with cooldowns built into the match format. Even so, those shooting stainless and unplated chrome moly get around 3500 to 5000 rounds out of their barrels before accuracy degrades due to erosion. Heat and friction are enemies to barrel life, and the amount of either that you inflict on your barrel, as well as the rate at which you inflict it, will determine how long your barrel will last.

Offline Runs with Scissors

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barrel life on assult weapons
« Reply #5 on: April 25, 2004, 11:39:20 AM »
Right.
And what lots of people don't understand is that the third round of a fully auto blast is a flyer-same goes for serious semi-auto fire. You just are not that accurate when your point of aim is jumping all around.
Its alot like watching NASCAR or a Drag Race and thinking you can do it  in your car too. One forgets all the funds available to the pros.
Playing army without a fully funder armorer gets expensive on the equipment.
I would think that if you shot a Mini 14 prudently your barrel may go above 20,000 rounds. Prudently means using 5-10 round clips with ample cool-downs, and remembering that when you let loose with rapid fire you are shortening the life of your barrel in the meantime.

Bill
Measure twice. Cut once.

Offline S.S.

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barrel life on assult weapons
« Reply #6 on: April 26, 2004, 04:56:42 AM »
I actually saw the a copy of the first specs. for the SKS and it was  designed to last 5,000 rounds. I know of many that are now in the 15-20,000 range and still shoot quite well though. The AK type weapons seem to be just as Durable if of reasonable quality to begin with.
I am not sure on M-16 type weapons, I had something else
as soon as I could get my hands on it and never fired mine much.
(I can  tell you for sure that a Swedish K won't jam very often though)

http://home.earthlink.net/~jwet/swede.htm

A wonderful weapon!!!!
Vir prudens non contra ventum mingit
"A wise man does not pee against the wind".

Offline S.S.

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barrel life on assult weapons
« Reply #7 on: April 26, 2004, 05:07:54 AM »
No, that is not my website in the link I posted!
Vir prudens non contra ventum mingit
"A wise man does not pee against the wind".