Barrel life question
- Thread starter damullet
- Start date
I did some googling and found this:
http://www.accurateshooter.com/technical-articles/excel-formula-predicts-useful-barrel-life/
http://www.accurateshooter.com/technical-articles/excel-formula-predicts-useful-barrel-life/
It depends a lot on what your looking for. Keep in mind your velocity starts dropping off later in your barrels life.
With my 300wm I was getting 2945fps with a new barrel and 900 rounds later I could only get 2750. At that point for me, the barrel was shot ou,t even though it shot as good as new.
Wareing out a 308 barrel will likly cost 5 times the price of a new one so you shouldn't worry to much.
Running them at maximum pressures and using hot burning powders. The worst thing you can do, even without high pressures or hot burning powders, is to shoot large volume strings. If your barrel is uncomfortable to the touch, you need to stop shooting and leave it cool down.
When a barrel is "shot out" greatly depends on what kind of performance you expect/desire/require out of it. If 2 MOA groups are fine then the barrel will last a whole lot longer than if you must have 1/4 MOA groups.
I bought some worn out barrels from a local benchrest guy. These barrels have approx 500 - 600 rds through them. I gave a shot out 308 bbl that had thousands of rds through it to a friend who is happily slinging lead downrange with it to this day. Who is to say which of these bbls is "shot out?"
I bought some worn out barrels from a local benchrest guy. These barrels have approx 500 - 600 rds through them. I gave a shot out 308 bbl that had thousands of rds through it to a friend who is happily slinging lead downrange with it to this day. Who is to say which of these bbls is "shot out?"
Not to pick on you but this has always been a pet peeve of mine, why do people reply to a post with an answer that they have not got a clue what they are talking about? If they haven't got an educated answer why not leave it to someone that does instead of posting an uneducated guess? Sometimes I think its just to get their posts up, I'm not really sure. I think the only thing that bothers me more is posts calling gun clubs " run by old fuds" and the posters feel that they are entitled to join any club they want to with no regard to that clubs safety rules or in house training that they require because they already have their restricted PAL and have done that course, after reading some of the lame questions on can I do this or can I do that I have to wonder if they really did the course.
Didn't mean to hijack the thread and done my mini rant, better get another coffee. Hope no one takes this personally or gets bent out of shape.
I've replaced several barrels and have one or two on order as we speak. Its my opinion that velocity is the highest contributing factor. Rifles that shoot velocities in excess of 3500 fps last fewer rounds than a rifle that shoots 3000fps. Rifles that shoot less than 3000fps I've never had to replace the barrels.
My 22-250 and 257 Roberts are good for about 2000 to 2500 rounds before they are cooked.
My 22-250 and 257 Roberts are good for about 2000 to 2500 rounds before they are cooked.
Its not velocity. Velocity is simply the result of pushing a huge amount of burning powder down a small bore. THAT is what damages the bore.
If it were possible to use compressed gas to produce large velocities without the heat, the bore would last much much longer.
