How long do rifle barrels last

By the time you get to where you are having accuracy problems, you probably shot enough ammo to equal the replacement value of the barrel a few times. Join Date Jun For optimal accuracy in the High Power circles, barrels are discarded after 4, rounds in regards to. Some of the wildcat calibers are only good for rounds, but those are oddballs. Now mind you, that 4, round number isn't steadfast, and is only for people trying to hold X ring scores at yards.

These barrels are still PLENTY accurate within yards - it seems that the yard and in accuracy starts to degrade around 10, rounds or more. Also, these are not chrome lined barrels, just chromemoly or stainless. A military chrome lined barrel is probably good more than you'll use it, unless you're running full auto, or a lot of suppressed fire with a can. For an average chrome lined military style rifle in 7.

As for. They start fire lapping at the mouth of the cartridge and cut a 'ring' around the mouth. Once the ring starts, it accelerates pretty quickly. However, again, this is something that the average shooter would never notice in terms of degraded accuracy, honestly.

Join Date Oct If one can afford to buy or reload 5k of. Section1 "If war is ever lawful, then peace is sometimes sinful. Lewis "Me? I think all of that is a load of gun school crap. I train and teach to shoot them to the ground. Beginning at the chest I shoot a burst to the chest and run the line up til I get to the face. Winning their hearts and minds Suarez style. Thank you for the replies. There are so many variables other than cartridge that contribute to wear and so it is difficult to answer this question based on cartridge alone.

Heat and pressure are the main two perpetrators that shorten barrel life. Put simply, if you shoot long strings of rounds without letting your barrel cool down, you are shortening its life.

Likewise if you shoot stupidly fast cartridges or load your rounds hot, you will likely experience shorter barrel life. I myself use a. Another factor is how well you clean your rifles barrel. This one can go either way. A lack of cleaning can indeed damage a barrel over time. Surprisingly though I have seen more barrel damage caused by over enthusiastic cleaning or poor cleaning technique than I have by neglect.

Typically it is the throat of the barrel that wears out. This is the section immediately forward of the action, before the projectile reaches the rifling. When you think about it that makes sense, this is were all the heat and pressure is at its most fierce.

It is at this smooth transition, between the chamber and the rifling, that the barrel degrades and we see a decline in accuracy. This is when a re-loader chases accuracy in a degrading barrel by seating a bullet further out of the case, reducing the jump to the degraded lands.

You are highly unlikely to ever reach the end of a single barrel unless you are doing something horribly wrong with your maintenance. If you are a target or precision shooter though you will almost certainly see the end of a few barrels. Know how to make your barrel last and recognize the signs of barrel wear. If you are shooting enough for barrel life to be an issue, you will almost certainly see it coming. The answer is almost certainly no. There was no rifling left for roughly an inch ahead of the lede.

Looking up the bore from the breech with your naked eye will not tell you anything; a borescope is the only way to see the awful truth.

Nor will looking from the front end do any good. Barrels burn out from the breech. The rifling at the muzzle of my match rifle shows hardly any wear at all.

Barrel life is determined by a number of things. First is the powder charge relative to the diameter of the bore. The more powder you burn, the sooner your barrel will die. Pressure gets into the mix. The higher your pressures, the hotter the powder flame, and the faster the steel erodes.

Friction from the bullet has no effect at all. If it did, bores would burn out fastest at the muzzle where the bullet has reached its full velocity.

Stainless steel is supposed to last longer than chrome-moly, and it probably does. Deep-cut rifling and fewer lands and grooves help. Six is standard, but during World War II, some. But most important is how the rifle is used. Prairie-dog-rifle barrels have short lives, as do competition rifle barrels. Some big-game-rifle barrels, which are shot only a few times a season, last nearly forever.