6x6.8 barrel

H

Hunteroutdoor

New member
I want to order a x-caliber barrel, this gun will be suppressed 95% of the time and shoot 65 ish grain + or- projectiles. So, 18" 1:10 twist I was thinking rifle length gas system with larger hole for adj gas block. Since it will have can on the end What profile? Weight is always a concern but with a can, I need enough meat for a shoulder with 5/8 threads. I have read many posts from Kimo about x-caliber barrels but I can't find these questions answered.

I have been a member here for 10 plus years but for some reason I can't reset my PW and get my old login. I emails keep getting returned when I try and contact and admin.
 
I ordered a 6x6.8 barrel last year from them. I don't know exactly what the weight difference is between the LW and SPR profile. If I remember right, I believe Kino favors the SPR. The LW is still .700" at the muzzle, which is their minimum for 5/8x24 according to the menu.

I went with the SPR contour on mine, but went with a 20" for the little extra free velocity, rifle length plus 2", and the larger hole. I also went with the 10" twist, with the plan to shoot 70 grain Ballistic Tips or Blitzkings, & left it up the the barrel to decide which it liked better. Both shot great with a minute advantage to the Sierras.
 
I went with a 22” spr 10 twist with r+2 gas.
My plan was the 70 gr. bt . It likes the 55 bt’s better , and I’m ok with that.
I’m sure Kino will chime in soon. Listen to him he knows his stuff .
 
DeereGreen said:
I went with a 22” spr 10 twist with r+2 gas.
My plan was the 70 gr. bt . It likes the 55 bt’s better , and I’m ok with that.
I’m sure Kino will chime in soon. Listen to him he knows his stuff .
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Interesting....I tried the 55's too, but the 70's won out.

That's why we test.
 
I ordered an 18" spr profile. Hopefully 8 to 10 weeks. I need to start gathering loading components. I was sent a link to my old logon, so this profile will dissappear.
 
So a little late to the party but there's several guys here that can help you through...

As for components my first choice is 8208XBR (I'm seeing it available again periodically), 55 & 70gr NBTs and 70BKs. The 58vmax shoots well also but it will at some point splash. CCI 450s primers, and brass in order is Starline (new production). S&B as well as the old old SSA brass is the best made but extremely hard to find so honestly Starline is your best option, good luck!
 
Kino M said:
So a little late to the party but there's several guys here that can help you through...

As for components my first choice is 8208XBR (I'm seeing it available again periodically), 55 & 70gr NBTs and 70BKs. The 58vmax shoots well also but it will at some point splash. CCI 450s primers, and brass in order is Starline (new production). S&B as well as the old old SSA brass is the best made but extremely hard to find so honestly Starline is your best option, good luck!
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How does Hornady brass rate compared to the others?
 
MPFD said:
What kind of brass do you like?
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For the 6.8SPC stuff I like S&B, old SSA (pre Nosler). They are the best IMO. SSA isn't made anymore like it was and S&B has some huge military contracts so they haven't offered brass in awhile. Starline is OK but not nearly as good as the first two. All these use SRP.

Hornady and Federal are probably the worst, Federal has the capability to build outstanding factory ammunition but their brass is pure garbage.
 
I’ve shot it all in the 6.8 spc II . The old SSA was indestructible, but it’s no longer an option. S&B was next. Hornady and Federal were good for 2-3 loads if you didn’t hot rod them.
When I switched to 6x6.8 I went with Starline because it was in production. I’m still working through it on the 1st firing.
I find that on a night hunting AR I don’t end up with much of my brass back .
 
Thanks for the replies, I got access to my old login. I will start getting loading stuff together. I have set of Hornady dies that I got in a group buy here many years ago, I just never built the gun. Do you guys crimp with the 6x6.8 or back the die out?
 
No crimp. Once I fire form to the chamber, I bump the shoulder .003"-005"

www.predatormasters.com

6x6.8 and/or 6 DTI Load Data

I have a CH4D 6x6.8 dies and a 20" BHW barrel (P3) w/ 10T coming and need some info to get me going. I like the Extreme Powders and have Varget , H322 & H4198 Primers: CCI 41 and various Bench Rest Primers too I assume the same case length as 6.8 SPC which is: Min 1.676" Max 1.686" (I will...
www.predatormasters.com www.predatormasters.com
 
Does anyone make any 6x6.8 cases drilled for checking bullet seating. I have the hornady system. Might as well figure all that out before I install the barrel. I have a 6.8 that I shoot hornady SST bullets out of. They have red tips just like the vmax bullets. To help avoid a mix up I want to try the Nosler ballistic tip varmint bullets because they are purple. It looks like some people shoot the 55 and others the 70.
 
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