Quote:
Originally Posted by ghostguy6
It really depends on what kind of stainless it is 440, 316, 17-4, ect. There are some stainless steels out there that can be tempered to a rockwell hardness of around 62-65 which should provide decades of wear resistance even firing FMJ's. Unfortunaltely I have yet to see a barrel that is marked with the kind of steel it is made of. I do know that there is a certain well known rifle manufacturer that uses 4140 for their blued barrels.
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4140 and 4130 are common chrome moly steels for building gun barrels.
The problem with getting a stainless that lasts longer is it will be much harder to machine and make accurate.
In production chrome moly also needs to be finished with bluing, or some other type of protection, but stainless does not, and even though stainless will rust, it won't rust as fast as un-blued chrome moly
The type of bullet used or what the barrel is made of does not have as much to do with how it will last as how it is shot .
As far as a rifle lasting 5000 rounds, yes it will, in fact many of the bigger cartridges likely will last that long for a hunting rifle.'They will not keep their ultimate match quality accuracy that long, but there is a difference in the accuracy parameters for normal hunting conditions and for match shooting .
The last thing I worry about is if a gun is going to be able to shoot 1/2MOA off the bench if I am going to take a walk and shoot a deer or moose at 200 yards with it.
Cat