Gunsmithing Barrel life chart
- Thread starter Sam19kilo
- Start date
On those ones, barrel life could vary greatly by how hot a load you push and also how hard you run your rifle.
My guess is a mild load and plenty of cooling time between shots might mean more than double the barrel life, compared to a hot load and running the bolt hard.
My guess is a mild load and plenty of cooling time between shots might mean more than double the barrel life, compared to a hot load and running the bolt hard.
On average, I'm guessing the one with the smallest case size, only because it will typically run at a slower velocity, thus saving the barrel. I don't know what cartridge that is, but probably the 6BR.
6 BR best
Br based wildcats next best
all others not the best for barrel life.
Br based wildcats next best
all others not the best for barrel life.
Barrel (throat) life is a function of amount of powder burned for a given bore diameter.
The more overbore the chambering, the more heat and erosion that occurs.
Which is why I'm not expecting much of that with the 7mm STW I'm planning
The more overbore the chambering, the more heat and erosion that occurs.
Which is why I'm not expecting much of that with the 7mm STW I'm planning
I know that your real intent is not to start a chart or list, but to get help deciding what you want, but I remember some poor optimist once who thought he could chart caliber vs. barrel life by soliciting actual barrel life experiences from members here. Reality is that people choose to do speed or barrel life and the results vary so much that charting anything meaningful would take thousands of data points if you expect to capture all potential calibers and get meaningful averages.
Your answers have already been posted above. You just have to decide what your preference is. If you only care about barrel life, then 6BR is probably your huckleberry. There are plenty of choices in the 6mm stable.
Or just go old school and shoot .260 Remington...just because.
Your answers have already been posted above. You just have to decide what your preference is. If you only care about barrel life, then 6BR is probably your huckleberry. There are plenty of choices in the 6mm stable.
Or just go old school and shoot .260 Remington...just because.
You said your looking to "make" a 6mm
What is the purpose of the rifle, what are you going to use it for 90% of the time?
What distance?
You need to answer these questions. If it was just for barrel life and nothing else, then why bother
with a 6mm. Don't just pick the 6's just because it's the flavor of the month.
The 6br and variants are a good start.
Plenty of other long life barrel rounds out there. 223 and 308 just to name a couple others
What is the purpose of the rifle, what are you going to use it for 90% of the time?
What distance?
You need to answer these questions. If it was just for barrel life and nothing else, then why bother
with a 6mm. Don't just pick the 6's just because it's the flavor of the month.
The 6br and variants are a good start.
Plenty of other long life barrel rounds out there. 223 and 308 just to name a couple others
I know that your real intent is not to start a chart or list, but to get help deciding what you want, but I remember some poor optimist once who thought he could chart caliber vs. barrel life by soliciting actual barrel life experiences from members here. Reality is that people choose to do speed or barrel life and the results vary so much that charting anything meaningful would take thousands of data points if you expect to capture all potential calibers and get meaningful averages.
Your answers have already been posted above. You just have to decide what your preference is. If you only care about barrel life, then 6BR is probably your huckleberry. There are plenty of choices in the 6mm stable.
Or just go old school and shoot .260 Remington...just because.
6br, 6 comp match, or 243ai running retumbo/h1000 will all have good barrel life.
Who gives a shit!! If you build a 6mm your looking for performance and low recoil. If you want barrel life go with a different caliber.
260 Remington is what the cool kids shoot now!!!! ? just shot my first match with my new one and love it! Been shooting a dasher, 223, and 6 creed, but I think I'm gonna stick with that 20 degree lifestyle. Lol
Who gives a shit!! If you build a 6mm your looking for performance and low recoil. If you want barrel life go with a different caliber.
260 Remington is what the cool kids shoot now!!!! ? just shot my first match with my new one and love it! Been shooting a dasher, 223, and 6 creed, but I think I'm gonna stick with that 20 degree lifestyle. Lol
I shoot 6.5 now, plan on sticking with it, but in a position to make a 6mm build. It will be strictly for prs. 260 has me interested, and .243 for the 6. I don’t plan on pushing them super hot, mid range load data and understand that barrel life varies when you wear out the throat. The barrel life of a 6 creed gives me zero interest so seeing if there was a better option
If you don't push projectiles to ridiculous speeds for the cartridge ANY chambering will last longer
D
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I would not expect that there would be a difference in throat life of any significance between 6 Creed (which you say you've ruled out) and the .243.
Similar case capacity.
Similar case capacity.
D
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In fact, there is no need for one of the two. Is the glass half empty, half full, or twice as big as it should be. Even the 6.5 Creed is an overbore and most that worship that altar don't realize there is a parent case. A failed attempt to replace the .308 Win, which is the parent for the .260 Rem and .243 Win.
My experience with .243 barrel life. Factory barrel and #2 from LRI
RPR, 1-8 twist, Lapua brass, H-4350 41.4 grs, Berger 108 Match, 2950 FPS. Run it hot and fast, 1200-1300 rds. Slow it down and keep it cool, 1500-1600.
When accuracy starts to drop off and no amount of barrel cleaning fixes it, time to re-barrel.
RPR, 1-8 twist, Lapua brass, H-4350 41.4 grs, Berger 108 Match, 2950 FPS. Run it hot and fast, 1200-1300 rds. Slow it down and keep it cool, 1500-1600.
When accuracy starts to drop off and no amount of barrel cleaning fixes it, time to re-barrel.
I’d say 260 is doing better now than 2009.
More factory ammo options and cheaper.
More brass options.
More bullet options.
More powder options.
Long OAl AI type mags.
That 6.5 Creedmoor didn’t just kill 260 entirely should say something.
How many MPH are these barrels?
Just get a .308.
Shoot it until you need to load it as a 7.7 Jap
and after it becomes an 8mm and you shoot that out it will be time to rebarrel.
Figure 1.5 million rounds.
Just get a .308.
Shoot it until you need to load it as a 7.7 Jap
and after it becomes an 8mm and you shoot that out it will be time to rebarrel.
Figure 1.5 million rounds.
Your words say 260, but you GIF said 6mmGT. ? ?
Lol! This is true. I think that those of us who like and shoot .260 post these memes as tongue in cheek humor. The truth we all know to be that Remington did as it usually does when it has a good cartridge. It doesn’t market it in the right style weapon, and when it doesn’t take off like wildfire, it abandons it in the gutter for someone else to take advantage of or to fade away. It must suck to work in R&D for Remington.
I’m soooo not into 6mm’s.
Maybe 6.5 or 7mm GT?
At this point the Remington at the end of the name brings the same level of embarrassment at getting caught plugging a bar whale during a red tide.
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Failed attempt? I'm not a creed fan boy by any means, but I think they were very successful with the creed effort.
You missed the point. 6.5 Creedmoor was a Hornady product, but based on the parent case of 30 TC, which was intended to replace the .308.
6.5mm Creedmoor - Wikipedia
.30 Thompson Center - Wikipedia
If only they had named it the 6.5-08...
Ps, anything that blasts north of 3kfps is going to be a barrel burner in the 6mm gang. Every Smith I know says BR for barrel life. It’s also a brutally accurate round with a good Smith and proper development.
Ps, anything that blasts north of 3kfps is going to be a barrel burner in the 6mm gang. Every Smith I know says BR for barrel life. It’s also a brutally accurate round with a good Smith and proper development.
Pretty much says all you need to know. Suck it up or go with something else.
D
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