6XC Barrel life.. What are you really getting?

[Petey]

Raptor .. just using common sense I guess If a bullet has twice the bearing surface of another, I have to imagine the shorter one is going to give you more life. (less friction, not as much bullet touching steel). Is it exactly 50%? Well probably not since its a mixture of heat, friction, grade of steel, plus many other "things", that makes the first 6" go by-by.

I doubt it would be a 2 to 1 ratio on a bullet with half the bearing surface, meaning I'll get 2 times the rounds just by shooting the shorter 107, b/c there's all that stuff that goes with pushing that 2nd bullet down the tube to consider.

It's painting a picture though, if those shooting the 115DTACS are only getting at best 1400 and those shooting the 107's aren't seeing much of anything at 1800 rounds. (With the same powder, more of course and close to same velocities)

 

[dearlallen]

I have a T2K SpecTacLr. I pulled the first Schneider 7.5 twist 5P at 1800 rounds. It was still shooting under MOA but had started life as 1/4 MOA. I used 300 cases for the life of that barrel shooting moly coated 115 DTACs at 2950.

 

[Hengehold]

My first 6XC was chambered about this time last year and I immediately fell in love with this little round. Took me no time to find a load that shoots teeny-tiny groups out to 1000. I ended up putting about 1100 rounds down it in 2015. I'm in the processes of building another as we speak, b/c I love the round so much.. but to my question, for those of you that's gone through barrels, what are you truly getting out of it?

To paint the picture, I'm talking MTU/HV Krieger contours 29-30 barrels in 1000 yard benchrest conditions. Actually VBR - matches consist of ~55-60 rounds with sighters.
I know a lot has to cleaning, powder, etc... But to give me a ball park here

Me, I'm using H4350 (39.8 Gr) shooting bare 107 SMK around 3075. Not really hot rodding it, but shoot 5-8 rounds in 3-5min span for each relay and bank of targets. 4 groove, .236 bore

What's your barrel, What's your powder, What's your bullet, How fast you running it, How often are you cleaning? I've read so many things from 1800-2500+. By the end of the year this barrel should have another 500-600 down it which would put it in the 18-1900 range. Is now the time to set back (if there's merit to it)? What should I expect to see?.. If it's 2K I'm good.. if it's 1.8K I may consider. Hard to even consider doing that since this barrel is OUTSTANDING at the moment. I really don't want to ruin a good thing.. Oh yeah and if you're asking what's accurate.. last group at 500 it mic'd at 1 3/4", 5 shots. I don't want to turn an outstanding barrel into a good or even great barrel. Not having actually going through a full barrel's life yet with this round, I'm at a bit of a loss on knowledge here.

Thanks!

I took my barrel off @ 2000rds and it was still cleaning targets at 1k. Shooting prone with sling. I used coated DTAC jammed into lands w 39.0 of h4350 at 2960fps in 30" bbl.

-Trevor

 

[Petey]

Trevor... Interesting, what barrel?

 

[Hengehold]

Trevor... Interesting, what barrel?

It was a Broughton barrel.
-Trevor