Haha, agreed, but I was simply asking which one was in the pic he posted.
- Thread starter tex68w
- Start date
Haha, agreed, but I was simply asking which one was in the pic he posted.
Is this a 16.5" handguard?
16” Mk18
Very nice, 17" barrel to mate up to it?
Actually 18” - kinda hard to see in the pic with the angle and suppressor cover.
I am still waiting on the Geissele SD-E trigger and for my AAC SDN-6 to get back from Echo Machine for the HUB conversion, but other than that the 6 ARC is done.
- LMT MARS- L MRP
- Proof Research Carbon 18" 6 ARC barrel 1:7.5 twist Rifle +1, D. Wilson LMT Barrel conversion w/SLR Micro Gas Block
- Rearden SPB .375/HUB
- JP Enterprises 6mm ARC Bolt
- Night Force ATACR 4-16x42 Mil-XT
- Reptilia AUS 34mm 0 moa
My first 6mm ARC proved to me that it's a great cartridge, but a 26" barrel is excessive.
How short are you going to chop it?
It actually fits this rifle’s use well - purely long range low recoil steel shooting. Took it out to around 1400 yards even. But it’s pretty unwieldy and because I really like the cartridge, I have a 16” Proof carbon barrel getting fitted to one of my LMT MLRs. I’m going to bracket the barrel length on this cartridge like I’m bracketing mortars.
The jury is still out. So far the Precision Hunter ammo has been sub-moa, but it really doesn't like Hornady Black 105's lol. Probably around 2 moa with that so far. I'm just using it to get some brass so I can see if Varget or CFE223 makes a good powder for it.
Yet another 6mm ARC built around a Proof CF 18" barrel on a V Seven ultra-light billet receiver set and rail - a six pound rifle easily capable of 1000 yards:
Nothing particularly special about this one other than the Bartlein barrel, matched JP high pressure bolt, and Geissele trigger-
So far my best load (below) gets sub 0.5 MOA cold bore groups and ~0.4 MOA groups overall. SD is 4, ES is 11.
(edit- Must have forgotten to post load?)
Berger 105 BT's and Hybrids are giving similar great groups, Starline brass. I'm running 2520 well within Accurate/Hodgdon limits. The load does slightly exceed Hornady 'semi' limits, so I don't recommend to others and if you do tread there be sure to have top notch bolt like the JP high pressure or a Wilson Combat. That said, there are zero signs of pressure and I have several loads on the same batch of brass with no failures.
At least the lots of Hornady factory ammo I have shot have flattened primers and I've seen one slightly loose primer pocket upon reload. They appear to be loaded quite hot for a factory load, which seems contradictory to their very conservative load data for semi's. In the above rifle, Hornady Black shoots 1.5 MOA at best.
So far my best load (below) gets sub 0.5 MOA cold bore groups and ~0.4 MOA groups overall. SD is 4, ES is 11.
(edit- Must have forgotten to post load?)
Berger 105 BT's and Hybrids are giving similar great groups, Starline brass. I'm running 2520 well within Accurate/Hodgdon limits. The load does slightly exceed Hornady 'semi' limits, so I don't recommend to others and if you do tread there be sure to have top notch bolt like the JP high pressure or a Wilson Combat. That said, there are zero signs of pressure and I have several loads on the same batch of brass with no failures.
At least the lots of Hornady factory ammo I have shot have flattened primers and I've seen one slightly loose primer pocket upon reload. They appear to be loaded quite hot for a factory load, which seems contradictory to their very conservative load data for semi's. In the above rifle, Hornady Black shoots 1.5 MOA at best.
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I don't know why everyone hates on the exposed gas block aesthetic. On the right gun it looks pretty cool. Some people act like it'll get knocked around, like an A2 FSB wouldn't?
I don't have any issues with it, gives it a Mk12 look. I am more concerned about the gas system at the moment than aesthetics.
I had the Acro ring mount lying around so I figured why not. Also, my cans came back from Ecco Machine so I hope to get this puppy back to the range soon and see how she runs suppressed.
80gr VT's grouped better than expected once suppressed and the rifle ran like a top, no feed or FTE issues, very happy. Left the chrono at home, sorry.
One of my personal 6 arc builds.
12" barrel I spun up myself, LMT Specwar upper, shorty PDW stock. Have since switched to an RC3 suppressor.
Managed to get some hits at 1,000 yards over the weekend.
12" barrel I spun up myself, LMT Specwar upper, shorty PDW stock. Have since switched to an RC3 suppressor.
Managed to get some hits at 1,000 yards over the weekend.
One of my personal 6 arc builds.
12" barrel I spun up myself, LMT Specwar upper, shorty PDW stock. Have since switched to an RC3 suppressor.
Managed to get some hits at 1,000 yards over the weekend.
Which carrier and bolt? Thoughts on the RC3? And what's the story with bottom side of the lower rail?
Centurion sandcutter carrier, JP bolt
I'll preface by saying a 556 RC3 is definitely not meant to fit a 6mm projectile, but after some very thorough alignment checks and making a custom muzzle device, I got it to work. It had very little back pressure which is nice.
The bottom side of the rail are some bolt on ARCA adapters I came up with since I don't like the clunky one piece plates.
16" Proof Carbon is pretty accurate - getting about 2550fps with 103 ELD-Xs
Yo dawg I heard you liked attachments so I attached some attachments to your attachments.
You a big heads up shooting posture guy?
I'm still waiting for parts to show up, but current list is:
Mega Arms billet receiver set
Xcaliber 24" heavy fluted barrel 1:7
RCA Bolt/BCG
Aero adjustable gas block
WOA handguard
Prs lite stock
Triggertech Diamond
*vortex Gen3 razor 6-36 should be here this week.
Mega Arms billet receiver set
Xcaliber 24" heavy fluted barrel 1:7
RCA Bolt/BCG
Aero adjustable gas block
WOA handguard
Prs lite stock
Triggertech Diamond
*vortex Gen3 razor 6-36 should be here this week.
Well we have a winner in the glass department lol.
