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#2958162 - 04/12/09 08:33 PM Re: Barrel life expectancy per cartridge [Re: TryMe]
chris112 Offline
Campfire Ranger

Registered: 01/31/05
Posts: 1702
Loc: South Dakota
It has been a long time since I read it BUT the first figures that I heard went 8,000 to 10,000 as the expected life of a barrel. It does vary with the cartridge used however. My .222 Remington was used by a previous owner to the point that the barrel had to be shortened and rechambered. Don't know how many rounds he put down it but I have put at least 2,000 rounds through it.

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#2958254 - 04/12/09 08:59 PM Re: Barrel life expectancy per cartridge [Re: chris112]
TryMe Offline
Campfire Regular

Registered: 02/24/09
Posts: 1189
Barrels live far longer than them that don't shoot,would try to make you believe.

I find than an interesting extrapolation.

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#2968262 - 04/16/09 02:45 PM Re: Barrel life expectancy per cartridge [Re: TryMe]
BISYN Offline
Member

Registered: 07/03/05
Posts: 193
Loc: Nowhere, NM
I remember being told that on a hot day it was possible to burn out the barrel on a .30 caliber machine gun in less than one can of ammo by simply firing one continuous burst, but I never had the guts to try it.
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#2974983 - 04/19/09 08:30 AM Re: Barrel life expectancy per cartridge [Re: Spotshooter]
Tonk Offline
Campfire Guide

Registered: 03/28/09
Posts: 3090
Loc: Chicago, Ill.
Sharpshooter I'll tell you what I think, here goes: This is on the average hunting rifle with various bullet weights being shot during that time. If someone goes out and just shoots the holy grail out of a rifle and never lets it cool or doesn't clean it properly etc. This is all going to affect barrel life down the road ok.

1. 22lr = 9000

2. 223 = 4000 to 6500

3. 243 = 4000 to 6500

4. 30-06 = 4000 to 6500, .308 = 4000 to 6500

5. 300-mag = 3500 to 5000


Edited by Tonk (04/19/09 08:40 AM)
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#2975082 - 04/19/09 09:23 AM Re: Barrel life expectancy per cartridge [Re: Tonk]
whelennut Offline
Campfire Guide

Registered: 09/15/06
Posts: 4195
Loc: Minnesota
Years ago I found a prairie dog town that offered my friend and I a chance to shoot for 12 hrs straight. I was alternating between two different rifles.
My friend had a new .222 Remington and hundreds of rounds of ammo
which he proceeded to shoot up over the weekend.
He claimed the barrel was never the same after that.
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#2975132 - 04/19/09 09:48 AM Re: Barrel life expectancy per cartridge [Re: whelennut]
bea175 Offline
Campfire Oracle

Registered: 02/15/02
Posts: 25144
Loc: Kpt.,TN , Montgomery, Co, VA
It isn't how many rounds but how fast between shots that will get the barrel sooner than later
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#2976993 - 04/20/09 04:26 AM Re: Barrel life expectancy per cartridge [Re: bea175]
Jason280 Offline
Campfire Regular

Registered: 12/24/06
Posts: 1175
Depending on the upkeep, I would guess a .22LR would go in the neighborhood north of 10-15k rounds and still give "minute of squirrel" accuracy.

Of course, on centerfire rifles, there are a lot of variables to keep in mind, with the most important being heat. This is even more true for high velocity centerfire cartridges, specifically those with muzzle velocities over 2800-3000fps. Let the barrels heat up too much on these rifles, especially a small caliber such as a .22-250 and .243, and you can ruin a throat in less than 1k rounds (if not 5-750 rounds). Keep the barrel cool, and you can expect a barrel to give sufficient accuracy out to 4k+ rounds.

Now, "acceptable accuracy" is subjective. A deer hunter, quite frankly, is likely to never shoot out a barrel. In fact, its more likely the barrel would rust out before it was shot too much. A bench shooter, on the other hand, may consider a barrel ruined after groups begin opening up .2-.3". Actually, I have talked to a few shooters who were rebarreling after groups "opened up" to .5" at 100 yards.

Reality is, very few of us will ever shoot enough to truly ruin a barrel. I have heard it told from several 'smiths that more barrels were ruined from improper cleaning than any other method, shooting included.

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#2980088 - 04/21/09 08:13 AM Re: Barrel life expectancy per cartridge [Re: Jason280]
rgrx1276 Offline
Campfire Regular

Registered: 04/22/06
Posts: 1366
Loc: Israel,Afghanistan, Iraq, MT, ...
I shot high power rifle for 9 years. In that time I managed to win state championships, regional matches,and some national matches.I went distinguished in 1996, and have a high master classification in over the course and long range.

In my experience with the 223 I saw about 3500-4000 accurate rounds in over the course competition. At close range,(inside 500 yards), the caliber seemed to last much longer. But I shot the 600 yard line a lot on sunday with the 3-600 matches. Douglas,Hart,Shilen ect all died around the same time. Talking to the USAMU guys, that's what they found out as well.

In my 300 win mag LR rifle, 2000 rounds was where I started to see fliers at the 600-1000 Yard Line.

When I went to the 6.5x284,my barrels died around 800 rounds. It's a great cartridge, but a real barrel burner in the LR game.

I read an article years back by Kevin Thomas in Precision Shooting Magazine when he was employed by Sierra, and I "believe" he said the 308 barrels started throwing fliers at the 200 yard line at 3200-3400 round count. This was after firing 10 round strings with the totals fired in one minute.

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#2986093 - 04/23/09 12:02 PM Re: Barrel life expectancy per cartridge [Re: rgrx1276]
Dave_Skinner Offline
Campfire Tracker

Registered: 05/26/03
Posts: 5509
Loc: The Treasure State
I can't imagine a 300 Win Mag lasting to 5000 rounds, not with that short neck and all that powder. I think I maybe got 1500 rounds out of my 25-06 before the throat washed away.
I think my first CRMO 223 barrel off my Savage lasted 3000 or so shots. Actually, the last group it shot was a .415 but the throat was out too far to use the magazine any more. It's in the stash to be set back and put on something, someday.
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#2992067 - 04/25/09 07:01 PM Re: Barrel life expectancy per cartridge [Re: Dave_Skinner]
jimmyp Offline
Campfire 'Bwana

Registered: 11/28/03
Posts: 10763
Loc: Georgia
if I don't get some bullets pretty soon my barrels are going to last forever...
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