< 1/2 MOA 6.5 Grendel Barrel?

[StoneHendge]

do i understand that a proof research 6.5 creedmore barrel is only good for great accuracy to 2500 rounds?

A 6.5 Creedmore barrel is expected to start degrading at 2500. Overbore cartridges erode the throats rather quickly. Proof claims to get longer barrel life due to their cooling aspects and I guess I'll see. All of their other claims have held for me but I always remain skeptical until I see otherwise. To put that in perspective, though, a 6 CM is estimated at around 2k while calibers like 300 WinMag, 338 LM and all of the WSMs only have about 1k in them. I think 6.5 Grendel is around 5-6k while .223 and .308 are beyond that. I had a .223 barrel that I used for varminting and long practice sessions that I retired at 8k. It was still shooting slightly under MOA, but that's not minute of prairie dog when you get out a few hundred yards.

[Klem]

By once a year I mean 1.5K rounds (.223) - heavy profile Kriegers, TruFlite's, Broughton's, Archers, MADDCO's, for F-Class (Bartlein didn't exist back then).

Sure, those barrels will keep on shooting well but it all depends on your definition of accuracy. Truth be known we were only really competitive during the first 300 rounds. Guys called it the 'Golden Age' of a barrel.

I take back my earlier claim to never seen a Proof. I was watching an Accuracy International AXMC in 300WM being zeroed at 100M not long ago. It had a carbon fibre barrel with brake and I assumed until now the barrel was proprietary to AI. On their website it states Proof barrels are used. They were having all sorts of trouble trying to get a group but to be fair it could have been anything, including the two dudes who are more sales-reps than shooters. It wasn't the true potential of that gun for sure, so no claim or disrespect to Proof.

[Bobke]

[DVDVC]

and gunsmith to the task.

Seems to be a recurring theme around here!

[grayfox]

It is what imparts your intentions to the bullet. Without it the bullet doesn't fly.
'Nuff said.

[Tipsymutt]

My Satern 18 incher is a great performer. Took a while to get but im happy with it.

[FLshooter]

[Dack Janiels]

https://craddockprecision.com/6-5-grendel-bartlein/ edit to add: SDM-R profile with .750 gas block and 1:8 twist

[am4966]

Compass Lake Engineering also has great prices on Bartlien n Krieger barrels. They have a good rep too.

Mark at PF makes a great barrel but his shipping times have always been a deterrence for me. But if your in no hurry

[mateba]

These barrels are using not tried and true technology. They are using cutting edge developments. https://tacomhq.com/structured-barrels/ They suggest most inaccuracy is a result of barrel harmonics. Their barrels are showing interesting results like; <1/2 moa accuracy across load development and manufactured ammunition. They say this is due to their harmonically deadened barrel tech which negates developing loads around an individual barrel's harmonic nodes. There are some other interesting things about this barrel tech but the 1/2" accuracy across all loads stood out. Basically they are only focusing on shot-to-shot ammunition consistency and no longer focusing on the sweet spot discovered in load development.

I would not spend this kind of money on a barrel. I would spend this kind of money on firearms. That being said, if I had 2000yard range...

[Dino11]

I know this is a 6.5 Grendel site, I was considering building one.

But I got into the 6mmARC instead. Doing a lot of homework and weighing the differences is why I went this route.

It just made since, better accuracy, longer range, and longer barrel life. They say the life expectancy of one of these matches that of .223.

Now for the downfall of it, right now you can't hardly buy any thing gun related. I was fortunate and jumped on board right before this pandimic.

I am set on one having 3 rifles, having reloading supplies to last me for God who knows how long.

I have an Odin Works HBAR barrel that shoots .5 MOA without even trying very hard. It is just remarkable how well this round shoots, and not really effected by wind drift, and the bullet drop is very predictable.

I was at the range the other day and these two gentlemen were simply amazed that I could hit an 8" steel plate repeatedly with no misses @ 600 yards. With no doubt an AR15. Then I moved over to the 200 yard plate and took 5 shots in under 10 seconds and hit every one of them. That old man said thats some shooting son. I told him that I was taking my time, the scope never left the target. He said he could never do that with his Grendel.

[A5BLASTER]

I know this is a 6.5 Grendel site, I was considering building one.

But I got into the 6mmARC instead. Doing a lot of homework and weighing the differences is why I went this route.

It just made since, better accuracy, longer range, and longer barrel life. They say the life expectancy of one of these matches that of .223.

Now for the downfall of it, right now you can't hardly buy any thing gun related. I was fortunate and jumped on board right before this pandimic.

I am set on one having 3 rifles, having reloading supplies to last me for God who knows how long.

I have an Odin Works HBAR barrel that shoots .5 MOA without even trying very hard. It is just remarkable how well this round shoots, and not really effected by wind drift, and the bullet drop is very predictable.

I was at the range the other day and these two gentlemen were simply amazed that I could hit an 8" steel plate repeatedly with no misses @ 600 yards. With no doubt an AR15. Then I moved over to the 200 yard plate and took 5 shots in under 10 seconds and hit every one of them. That old man said thats some shooting son. I told him that I was taking my time, the scope never left the target. He said he could never do that with his Grendel.

In all honesty, there isn't enough difference between the 2 at 600 are less to worrie much about.

As far as barrel life goes, as long as your handloads dont go over pressure the 6mm version will have less throat life them the 6.5mm .

I read that post on 6mmarc fourm. That was some fine shooting for sure. But honestly if you would have been shooting against someone who had their rifle and load dialed in and had some skill at that range. The results would have been different.

And your arc is not more accurate because it shoots a 6mm bullet and not a 6.5mm bullet. Barrel quiality, load quality, scope/mount quality, trigger, postion, overall rifle build quality and shooter skill has more to do with that then bullet diameter.

[grayfox]

I got 'em both, shoot 'em both, and wanna learn from anyone who's a better shooter than I am.
That's why I like this forum (and the 6Arc!!) for sure. Plenty of guys to learn from.
Good job to anyone who can hit like that, whether 200 or 600!
Or 1000.
I need more trigger time.

I need a million bucks!!! (not really but I wouldn't turn it down!!!)

[StoneHendge]

It just made since, better accuracy, longer range, and longer barrel life. They say the life expectancy of one of these matches that of .223.

I don't know where this rumour is coming from. Neck the same case down and you increase overbore. Rule of thumb is 2500 for a 6.5 CM and and 2000 for 6 CM etc., so......

But you forgot to mention substantially reduced recoil

[Dino11]

In all honesty, there isn't enough difference between the 2 at 600 are less to worrie much about.

As far as barrel life goes, as long as your handloads dont go over pressure the 6mm version will have less throat life them the 6.5mm .

I read that post on 6mmarc fourm. That was some fine shooting for sure. But honestly if you would have been shooting against someone who had their rifle and load dialed in and had some skill at that range. The results would have been different.

And your arc is not more accurate because it shoots a 6mm bullet and not a 6.5mm bullet. Barrel quiality, load quality, scope/mount quality, trigger, postion, overall rifle build quality and shooter skill has more to do with that then bullet diameter.

Your right their is not much difference in them. except that the 6mm edges out almost everywhere. And one of the reason the DoD adopted the 6ARC was because of extended barrel life. I still may do a Grendel, I have all the parts except the barrel. And I don't buy junk barrels.