Wanting to put together another 6.5 creedmoor with the extra M5E1 receiver set I have and I cant decide which barrel to go with. Will the craddock signature series barrel be worth the extra $140?
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@bigjake83 what bore scope are you using?
Amazing borescopes for the money. I have the wireless version and it syncs to my phone everytime. Basically you just open your wifi and pick the borescope and then open the Mo-View app. Very easy
Amazing borescopes for the money. I have the wireless version and it syncs to my phone everytime. Basically you just open your wifi and pick the borescope and then open the Mo-View app. Very easy
Is the craddock worth the extra cost over the proof?Have both a Proof CF 20” +2 gas and a Craddock Bartlein 21” rifle gas, but a 20” +2 1:7 twist Krieger that John Scandale from Keystone Accuracy did for me is just slightly more accurate than the other two, and all three are capable of .5” on any day I’m equally capable. Good to have a variety of very viable options to choose from.
Is the craddock worth the extra cost over the proof?
though there is that lead time thing, if you’re the impatient sort.
@bigjake83 is drilling the gas port in the rifling common practice?
@bigjake83 is drilling the gas port in the rifling common practice?
Usually not on my custom barrels, but I have seen it on mass production barrels.
FWIW, when I finally got my barrel from Craddock, (back when the wait was only 4 months) I noticed the gas port straddled the transition between a land and a groove. I called and Paul told me that in his experience, there was no accuracy difference between a gas port straddling a land and groove and a gas port centered in a groove. He went on to tell me that of all the cases that he had seen where a barrel showed gas port erosion that was faster than normal, they all had ports that were centered in a groove. So he no centers ports in a groove unless a customer specifically requests it.
I have a 24" Proof CF 6.5 CM. I'm very happy with it. It was super accurate right out of the gate. Very easy to tune with a SLR AGB and has been nothing but reliable. I think the difference in accuracy between the two mentioned barrels is going to hide in the margin of error created by shooters ability, bullet preference, reloading skill, and builders tuning ability.
Damn that's nice.The New Proof CF 6.5CM came in today, gas port looks perfect.. will post more pics once I get it assembled.View attachment 7846457
Damn that's nice.
You going to run a can on it?
It's a fucking great rifle. Jake has forgotten more than I'll never know when it comes to installing these barrels for optimum accuracy. Looking forward to shooting it real soon.Well here she is, put it together with @FALex this evening. I'll take her out next week and post the results.
View attachment 7846405View attachment 7846406
It's a fucking great rifle. Jake has forgotten more than I'll never know when it comes to installing these barrels for optimum accuracy. Looking forward to shooting it real soon.
My first rounds downrange were 120SMKs loaded at(randomly) 2700fps. Shot knotted up little groups. Let us know what it does after the gas is tuned and you have a good load. Eager to see barrel to barrel consistency.
Are you using the factory buffer and spring that came with the SP10?
I wonder if a faster 130 might do better in that regard than a slower 147
I've never had the 147's actually true out to a BC remotely close to that. Especially in a slower Creedmoor
If anyone has ask questions regarding some of these builds I put together, or have any equipment they'd like me to test on the Proof Barrels send me a PM I'd be more than happy to help with any testing I can.
The average cost of a custom Bartlein or Krieger Barrel is slowly creeping up to the same price bracket as Proof so I definitely understand why most people aren't comfortable dropping $900 on a PR Carbon Wrapped Barrel, so if there's anything I can do to help y'all's decisions let me
Know.
I'll throw some hand loads together sometime soon and get some MV readings from them and box ammo so we can all see what the numbers look like, I have a funny suspicion that going with a 24" inch barrel really isn't going to provide much of a increase in MV over a 22". The main reason why I decided to go with 24" other than just availability was that in Southern Idaho everything is flat so getting the most muzzle velocity I can while using a High BC Bullet like the 147ELD out of a large frame gasser seems to be the name of the game.
As I've mentioned above I'm also starting a project using a LaRue OBR with a Custom 18" Bartlein Barrel from Compass Lake, it's going to be real interesting comparing the differences with the 18" and 24".
I haven't ran the 20" yet but here is the following info I have.Did you have time to see how the barrel length affected velocity and staying in a higher node? Is the 24” worth it over the 20 or 22 inch barrel with the same heavy bullets, or not tested both?
I’d send that back. Especially since the proof barres proves the shooter isn’t the issueCalled Paul and he suspects I'm having carbon ring issues - not sure if that's truly the issue because I pulled the barrel.
I have a Seekins 308 with a proof 20” 6.5cm barrel. And adj gas blockNo Sir I'm running the H2 JP SCS, that coupled with the SA adjustable gas block, American precision arms adjustable muzzle brake and full Mass carrier with the forward directional gas port it is probably one of the smoothest shooting creedmoors I've put together to date.
Loud from the shot or are you talking about the sound of the buffer/spring dragging inside the receiver extension?I have a Seekins 308 with a proof 20” 6.5cm barrel. And adj gas block
It’s real loud to the shooter with a 338 ultra or ultra 9 can.
Can I change the buffer or Bcg or something to help this
Loud from the shot. Loud at shooters earLoud from the shot or are you talking about the sound of the buffer/spring dragging inside the receiver extension?
Well changing the Buffer or BCG isn't going to change that. I don't use suppressors so I cant help you on this one, maybe a can with lower back pressure???Loud from the shot. Loud at shooters ear
I would bet it’s ejection port pop / noise
So looking at this it seems the 22” really doesn’t give up much of anything to the 24” being in the same velocity node without excessive pressure or beating up the brass to get there?I haven't ran the 20" yet but here is the following info I have.
24" PRCF with 41.0grs of H4350 / 140 ELD's/ Starline Brass.
View attachment 8088380
Here's (2) Bartlein barrels same in every way except length, one is 18" and the other is 22"
Both are shooting the exact same load of 40.4grs or H4350 /140 ELD's/ Lapua Brass.
18"
View attachment 8088382
22"
View attachment 8088381
The 24" PRCF with the load of 41.0grs of H4350 is right there at the edge of showing pressure signs.So looking at this it seems the 22” really doesn’t give up much of anything to the 24” being in the same velocity node without excessive pressure or beating up the brass to get there?