About how many rounds can be fired from a 300 win mag before major work will be needed???

Depends on powder used, cleanning intervals, etc.

The world is full of numbers. Pick one!

The answer is just a few less than thru a 30-06 and I'd guess that you could shoot the 300 Mag for 3,000 rounds before a rebarrel.

Problem here is so many things are very variable and the number copuld be as few as 800 and as high as 6,000. Just get the 300 and worry about the barrel change later. It's rare to ever shoot one out!

Using factory loads and normal cleaning after use....

If you clean it and don't overheat it I would guess 3-6000

There is a couple of ways to look at this. One is how much will you use the rifle and how many rounds will you put down range in a year?

Second is = Take a bullet going 3000 fps.
Length of barrel is around 24"
Takes a bullet at 3000fps about a 1/2 millisecond to travel the barrel.
2000 rounds gives you about 4 seconds of barrel life.

Pick which one you like, but I like to think that my barrel will last longer than 4 seconds.

Thanks for yalls info......

Typical life for a well cared for 308 is typically 5000-7000rounds.

Under similar corcumstances
a 30-06 probably more like 4000-6000 rounds
a 300WinMag 3000-5000
a 300Weatherby probably would take 500 rounds off of that if not for it's long freebore so they run about the same

And a 30-378Wby or 300Remington UltraMag will have a barrel life similar to that of a 257Weatherby, I.E. <2500rounds (Barrel life is related to velocity)

Of course these numbrs are variable depending on load level, specific propellant choices, bullet type, weight and jacket material, cleaning proceedure and frequency of cleaning, how hot you get it when shooting...

I've killed a couple of 25-06 barrels, and while I've replaced several 30-06 barrels it was always related to some other issue than "wear".

either I wanted a heavier profile, or a "clean" (Not drilled for sights) barrel, or simply a longer one...
Or in one specific case switching from a drilled Cr-Mo 22" tube to a "clean" (undrilled) stainless steel 24" tube.
(I.E. all of the above)

And in one notable instance I ran a bullet over a gas check
that was left in the barrel from playing with some cast-GC bullets... talk about "freak accident"....


PegLeg,

for some strange reason it took me 20 minutes to stop laughing (from reading your reply) long enough to type my reply....

AllanD

Not likely you will use one for shooting pds anyway so its all relative. How many guys have you ever heard of that had one that was "shot out".
3000 rds.= 150 full boxes of factory ammo

doubtful that but a very small percentage of average hunters shoot that many in a lifetime ....let alone one gun.

In my experience with wearing out 4 rifle barrels on my highpower match rifles I will say that its a very subtle change when a barrel goes south and will not be immediately observeable except at long range.

On my match rifles I only know when my barrel is wearing out when it won't hold the 10 ring at 600 yards anymore. Same gun will shoot perfect scores at 200 and 300 yards and it takes ALOT of shooting to notice an accuracy degradation at 100 yards.

Prior to moly-coating my bullets my barrels lasted around 3900-4200 rounds. Once I started moly coating my bullets barrel life is in the 5400 round count range. Again, this is only notieable at 600 yards. You won't see it on paper at 200-300 yards for quite some time.

Barrel life depends on several factors. I've seen a 7mm Rem Mag barrel used for 1,000 yard competition go south after just 1900 rounds.

For hunting accuracy you might get 7-8,000 rounds before a belted mag is considered worn out/unserviceable. Depends on how you take care of it, how hot its loaded, what kind of bullets etc etc.

Sir,

I am not a competition shooter so my answer is more than you're ever likely to shoot.

Look at it this way, if you're not varmint hunting with it, you can rest assured that it will be handed down to the next generation.

quote:

Originally posted by buckshot:
Look at it this way, if you're not varmint hunting with it, you can rest assured that it will be handed down to the next generation.

Buckshot that's on the money for sure.

I was new to rifle shooting when I read somewhere that a .300 Win. mag. barrel "might be good" for 1500 rounds.I shot my barrel to approximately 2200 rounds,with PROPER cleaning and NO overheating.I was getting nervious about the barrel "going south" at any moment,so decided to have it rebarreled.The rifle was still capable of 1/2" groups at 100 yds.When I had it rebarreled,I asked for the old barrel to be returned,which it was not.I will always wonder if that barrel was shot out or is now on another rifle or sold,etc.It was a #3 Hart stainless.The smith told me that he had to saw it off so there was really nothing to return.Who knows how long a good,properly cared for barrel will last?
The previous posts are probably correct.
FWIW,
Jim

It seems that you totaly forget the most important in this discussion:
Barrel maker
Barrel material

Several comparing tests performed by competitionshooters, heavily indicate that some wery wellknown stainless barrels of socalled select match quality from the one star state, only last 25% of what CroMo barrels from another brand lived. The tests included 3 SS barels in 6,5-06 and 1 crmo in same caliber. They were all used by the same competitor, with the same schrapcriteria. The SS lasted from 1200-1500 each, and the cromo was still accepted after 8000. He always used the same load.

But some other SS makers seems to use better quality material, and some of them can reach the same lifetime as good cromo barrels.

Hey I down load my 300 Winchester to about 2400 fps....

so with that way, you can get 8 to 10,000 rounds out of it...

rates a zero on the macho factor....

But it sure stretches out the barrel life substantially...

There are a ton of old match rifles in 30-06 and 300H&H that are still shooting, and I can guarentee you they get warm in rapid fire. Most competitors average 4,000 rounds downrange before they change their bullet seating depth. The average AR I'll wager, will go 8,000-10,000 rounds before it's gone south.
The 264 Winchester garnered a bad reputation as a barrel burner if for no other reason than it was marketed as a dual purpose rifle. Those that went varminting went south, the others, well they're still out in the field doing their thing.
Moreover, I'll bet more barrels have gone south because they were neglected, or because they were overly maintained with lousy equipment. Either way they weren't shot out.

quote:

Originally posted by jørgen:
It seems that you totaly forget the most important in this discussion:
Barrel maker
Barrel material

Several comparing tests performed by competitionshooters, heavily indicate that some wery wellknown stainless barrels of socalled select match quality from the one star state, only last 25% of what CroMo barrels from another brand lived. The tests included 3 SS barels in 6,5-06 and 1 crmo in same caliber. They were all used by the same competitor, with the same schrapcriteria. The SS lasted from 1200-1500 each, and the cromo was still accepted after 8000. He always used the same load.

But some other SS makers seems to use better quality material, and some of them can reach the same lifetime as good cromo barrels.

You are right but for the wrong reason. That particular maker caters to the bench community and makes a design compromise for accuracy over barrel life. They are button-rifled with very shallow grooves compared to other makers, for minimal stress induction during the rifling process. The good news is that a bench shooter is likely to get more hummers per 100 barrels (top competitiors buy them 10 or more at a time to find the hummers). Barrels are a disposable item in that game.

The bad news is that shallow lands wear faster (duh!). In other words, a known compromise to service a particular market, OTOH, Krieger services (among others) the highpower and service rifle matches where barrel life is a more important factor than absolute accuracy.

quote:

You are right but for the wrong reason. That particular maker caters to the bench community and makes a design compromise for accuracy over barrel life. They are button-rifled with very shallow grooves compared to other makers, for minimal stress induction during the rifling process. The good news is that a bench shooter is likely to get more hummers per 100 barrels (top competitiors buy them 10 or more at a time to find the hummers). Barrels are a disposable item in that game.

The bad news is that shallow lands wear faster (duh!). In other words, a known compromise to service a particular market, OTOH, Krieger services (among others) the highpower and service rifle matches where barrel life is a more important factor than absolute accuracy.

We Band of Bubbas

I agre on that, but you should also concider the mutch softer steelquailty used down south. Typicaly from 14-16HrC compared to good CroMo witch often lays from 27-30HrC

The reason is according to a metalurgist that Martensitisk SS looses toughnes and cool resistens, when it gets to hard(strong) . Atleast compared to CroMo
Austenitisc witch is also real rustproof on the contrary keeps it 's toughnes even at low temp, But are relativly soft

Agree but again that goes back to the amount of stress induced. Much is intentionally compromised to minimize induced stress and change in POI over a 10-shot string.

Hey, he never said if the question was about the rifle or himself. I'd say if I wore out a .300 Win Mag barrel in a couple of years, I'd be having major surgery. Shoulder problems, or more likely detached retenas in my eyes.

quote:

Originally posted by tiggertate:
Agree but again that goes back to the amount of stress induced. Much is intentionally compromised to minimize induced stress and change in POI over a 10-shot string.

So many disadvantages to avoid cutrifeling, or keep cost down