I have a 7mmWSM with a 27" Benchmark barrel,it has 1400+ rds through it.The accuracy is starting to go,I was just wondering if it would be worth it to have the barrel set back before spending the money on a rebarrel + new brake etc.How much extra life can you expect to get by setting it back?
Gunsmithing Is it worth it to have a barrel set back?
- Thread starter KQguy
- Start date
Re: Is it worth it to have a barrel set back?
Depends on the extend of the erosion, how much barrel shank you have left, an if you still want it to be a 7mmWSM.
There are a few other thinks to worry about, but those are the first ones I could think of.
You'd also have to balance the cost of a re-chamber vs. spending that money towards a new barrel.
You could also sell that one and put that money toward a new barrel as well.
If you consider selling let me know. I'm always looking for worn out barrels to practice on.
Depends on the extend of the erosion, how much barrel shank you have left, an if you still want it to be a 7mmWSM.
There are a few other thinks to worry about, but those are the first ones I could think of.
You'd also have to balance the cost of a re-chamber vs. spending that money towards a new barrel.
You could also sell that one and put that money toward a new barrel as well.
If you consider selling let me know. I'm always looking for worn out barrels to practice on.
Re: Is it worth it to have a barrel set back?
fwiw,
I'd concur with geargrinder, however, I'd side on replacing the tube. Especially if you have someone who wants to buy the old barrel.
We used to do A LOT of barrel take backs on .300 WMs as the load was hot and the guys shot them without thought to throat erosion. In short it became obvious that if you were going to take the rifle from the shooter to do a barrel take back you were in money to replace the tube...
If you have to actually pay a gunsmith to do it (right) I would hard pressed to recommend the practice. fwiw & imho.
Regards, Matt Garrett
757-581-6270
fwiw,
I'd concur with geargrinder, however, I'd side on replacing the tube. Especially if you have someone who wants to buy the old barrel.
We used to do A LOT of barrel take backs on .300 WMs as the load was hot and the guys shot them without thought to throat erosion. In short it became obvious that if you were going to take the rifle from the shooter to do a barrel take back you were in money to replace the tube...
If you have to actually pay a gunsmith to do it (right) I would hard pressed to recommend the practice. fwiw & imho.
Regards, Matt Garrett
757-581-6270
Re: Is it worth it to have a barrel set back?
At 1400 rounds, I'd hold off until you wanted to change the barrel. You never know how far the fire cracking has gone down the tube and a set back would be a waste of money if all of it couldn’t be removed. Typically, accuracy is only good for a few hundred rounds after a set back on a high mileage barrel.
I had a 300 Jarret and after 1k rounds the fire cracking was past the bell of the scope
At 1400 rounds, I'd hold off until you wanted to change the barrel. You never know how far the fire cracking has gone down the tube and a set back would be a waste of money if all of it couldn’t be removed. Typically, accuracy is only good for a few hundred rounds after a set back on a high mileage barrel.
I had a 300 Jarret and after 1k rounds the fire cracking was past the bell of the scope
Re: Is it worth it to have a barrel set back?
personally, i wouldn't do it if you were paying for the work.
personally, i wouldn't do it if you were paying for the work.
Re: Is it worth it to have a barrel set back?
Good pics 300sniper, what caliber and round count was that barrel?
Good pics 300sniper, what caliber and round count was that barrel?
Re: Is it worth it to have a barrel set back?
New barrel time, methinks. While barrels can be revived, I've never considered the process as being cost effective in the long term.
New barrel time, methinks. While barrels can be revived, I've never considered the process as being cost effective in the long term.
Re: Is it worth it to have a barrel set back?
For the money involved and the likelihood of only getting a few hundred more rounds out of it before you have to replace the barrel entirely...I'd opt to save the cash and put it toward getting a new barrel installed.
For the money involved and the likelihood of only getting a few hundred more rounds out of it before you have to replace the barrel entirely...I'd opt to save the cash and put it toward getting a new barrel installed.
Re: Is it worth it to have a barrel set back?
A suggestion.
As odd as this may sound, you might try just running a throating reamer up to chase the erosion out.
Might be pleasantly surprised. . .
A suggestion.
As odd as this may sound, you might try just running a throating reamer up to chase the erosion out.
Might be pleasantly surprised. . .
Re: Is it worth it to have a barrel set back?
Your 7WSM barrel is just shot out.
Unless you have a custom bbl with something like a Palma contour, you are done; not enough room to set the barrel forward enough to make a difference without putting case body forward of shank area.
1400rds from any magnum under .375 diameter is Very Good.
You want long barrel life? Try the .280 Rem.
Look at the cost of having gunsmith set forward your barrel versus buying a new pre-fit. Dunno if Shilen/Brownells have 7WSM short-chambered & pre-threaded barrels for your receiver setup, but that could be cheaper than trying to renovate your old barrel...
Try Pac-Nor on the pre-fit. If you can pull the barrel and mic the distance from receiver shoulder to your boltface and bolt rim, they can pre-fit your barrel
good luck!
Your 7WSM barrel is just shot out.
Unless you have a custom bbl with something like a Palma contour, you are done; not enough room to set the barrel forward enough to make a difference without putting case body forward of shank area.
1400rds from any magnum under .375 diameter is Very Good.
You want long barrel life? Try the .280 Rem.
Look at the cost of having gunsmith set forward your barrel versus buying a new pre-fit. Dunno if Shilen/Brownells have 7WSM short-chambered & pre-threaded barrels for your receiver setup, but that could be cheaper than trying to renovate your old barrel...
Try Pac-Nor on the pre-fit. If you can pull the barrel and mic the distance from receiver shoulder to your boltface and bolt rim, they can pre-fit your barrel
good luck!
Re: Is it worth it to have a barrel set back?
I have set back a few barrels and the key to getting usable life out of a barrel is the timing.
example, I had a 30" barrel f-class gun in 243AI full 1.250" tube. After 600 rounds down range I had a choice scrap the worn out brass and fireform new and may-be get another 400 round out of it. Or turn it into somthing a little more barrel friendly. I relapped the barrel (the right way) and cut off 4 inches of breach and 1/2" of muzzle and made it a 600 f-class gun in 6mm br. It is shooting great and has 250 down it now, I expect it to go for at least another 1500.
Had I run another 400 of 243ai it would have been too worn to make any barrel over 20 inches long with what would have been left of the throat.
So if considering a set back always do it when you feel you still have at least a third of the barrels accurate life left and at least 2" of breach end to remove for the new chambering.
I have set back a few barrels and the key to getting usable life out of a barrel is the timing.
example, I had a 30" barrel f-class gun in 243AI full 1.250" tube. After 600 rounds down range I had a choice scrap the worn out brass and fireform new and may-be get another 400 round out of it. Or turn it into somthing a little more barrel friendly. I relapped the barrel (the right way) and cut off 4 inches of breach and 1/2" of muzzle and made it a 600 f-class gun in 6mm br. It is shooting great and has 250 down it now, I expect it to go for at least another 1500.
Had I run another 400 of 243ai it would have been too worn to make any barrel over 20 inches long with what would have been left of the throat.
So if considering a set back always do it when you feel you still have at least a third of the barrels accurate life left and at least 2" of breach end to remove for the new chambering.
Re: Is it worth it to have a barrel set back?
^^
Jim's advice is good but if you don't want to go that way, I'd also say get rid of the barrel. Not cost effective in the long run, particularly when you've got firecracking running a fair way down the bore if you've been running something hot.
^^
Jim's advice is good but if you don't want to go that way, I'd also say get rid of the barrel. Not cost effective in the long run, particularly when you've got firecracking running a fair way down the bore if you've been running something hot.
Re: Is it worth it to have a barrel set back?
If you had it in something like 6mmBR I would consider it if you hadn't pushed it too far.
For a WSM I would get a new one. Not worth spending any money for something which is only going to get a little bit more life out of it if any.
If you had it in something like 6mmBR I would consider it if you hadn't pushed it too far.
For a WSM I would get a new one. Not worth spending any money for something which is only going to get a little bit more life out of it if any.
