r/6ARC

Hey all, I’m sorry If this is a recurring question on this forum but I finally just got my hands on a thousand CCI 450 primers. Im looking to reload for my 6ARC and curious on what others paths have been and what they recommend on starting to build up a load for coyotes and hogs. I’ve heard varget and CFE223 is a good starting point but open to anything right now! Also looking for recommendations on bullets and weights. Thank you

Decided to do a ladder test with this 18 in PXT. I'm sitting on a boat load of Leverevolution which has served me well in speed and accuracy but I can't seem to get single digit SD's like I've seen others get. Once I reached 29.8gr I stopped the test and used the 30.1 in my 6arc MPA bolt with a heavy comp proof. All 5 shot groups (yeah not the best sample size but I'm tired of load development)

New Hornady brass that I put through an expander mandrel, followed by my Hornady case trimmer that puts a chamfer and deburr on them without trimming them. I then run them through a reddingn FL sizing die only to size the necks with a .267 bushing which should give me .004 neck tension. Using CCI 450 Magnum primers loaded to a COAL of 2.26in

Build List tip to butt

PTR Vent 1 (it's hearing safe all day long with this can)

PXT 18in with SA arms adj gas block set to full gas (haven't messed w/it)

CMT HDM 17 in rail with ARCA

JP enhanced bolt group with a LMT F/A carrier

SOLGW stripped upper (thermal fit tight)

Vortex Gen 3 4-24x

Radian lower with Trigger Tech Diamond AR10 trigger

A5-H0 & Geissele Super 42

ERGO flat top tactical deluxe grip

The barrel still hasn't crossed over 200 rounds yet but I'm pretty happy with the 29.2 load. Will eventually pick up some 107smk and 108 or 109 bergers. It also seems to shoot my Hornady 108gr handloads at the same charge fairly well.

So on my end, I completely failed. This is my first time taking this set up to the range and I totally forgotten some tools. So I was there to sight in my scope, but I forgot I set up the zero stop on this scope and didn’t have the tools to take it off and then I forgot my lever to open up the adjustable gas block. So pretty much my gun was a bolt action. I put about 20 rounds out there and I can say it’s definitely accurate, but the total failed on my end. The spent cases were not extracting because I had the gas completely closed up. I was so excited to get it out there that I forgot to bring what I needed.

Anybody have some rounds through one? Finally making the jump over from 5.56 on my SPR and wanted to see what results people were getting.

BrassFacts just did an interesting review on PSA’s ICAR receiver set with 6 ARC. He ran 800 rounds total, mostly of the Frontier load (Hornady’s off brand 105gr in FMJ). What’s weird is that he started out having no issues and then gradually had more and more jams until he had to cycle each round by hand. He was running a blue Sprinco and H2 buffer. I saw one commenter state that the problem is his Rexus bolt, which starts out strong and then loses reliability once it gets dirty. Thoughts?

The other big issue to come out of this video (and the video from Hop, which was only published internally for his subscribers) is the compatibility of anti-rotation tab handguards with ICAR receivers. If anyone knows any rails with anti-rotation tabs that work, please respond with that info.

Took the VB6 to the range today. Also took my Noah 718 QD to compare.
I’ve been very happy with my Noah but it was recently sort of dethroned by my Inconel Tisha as the Tisha sounded just a bit better than Noah and was also a good chunk shorter.
The rifle build is a SOLGW broadsword upper and rail, with a Geissele REBC and Noveske Gen 1 bolt, 20” Proof PXT barrel (rifle +1 gas) and a superlative adjustable gas block. Standard lower with a5 buffer and h3 weight and SSAEX.

I have about 250 rounds through this upper since assembly 2 weeks ago with the new barrel.

First Impressions
I started with VB6 and a 20 round mag of hand loaded 105 Berger Hybrids. I won’t go into load data here but it’s a 62k PSI loading and average velocity was 2650 FPS.
First shot as the shooter was shockingly pleasant to my ear. It reminded me of my first time shooting with a Tisha or CACM. Performance was immediately impressive as I confirmed there was no zero shift at 100 yards. I proceeded to let another guy shoot a couple rounds of the next mag and stand back on both ejection side and opposite. VB6 sounds really good. After 40 rounds in approximately 5 minutes it was hot, but no major mirage was visible in my 3.5-21 scope at 10-21 power. The can seems to cool off very quickly. This gun was tuned for the Noah and I made no changes, but it did seem to have more back pressure than Noah but was quieter at ear and bystander.

Comparison
I then pulled VB6 and swapped to Noah, it immediately makes the rifle more unwieldy but I’m used to the extra weight. Noah is still a great performer but it did sound louder and to my ear/face had less gas to the face. We shot two 20 round mags of the same reloads back to back 10 of each mag with Noah and then VB6. Recoil is a touch more punchy, I felt like that could be due to the fact it’s noticeably lighter weight. It decreased the OAL of my rifle to 43” from 44.5”. So that’s not a huge difference, but the weight being further back had a very pleasant feeling.
Overall, VB6 is quieter with slightly more back pressure, but I still got no gas to my face. Noah is a touch louder but had lower back pressure. I think I can adjust my gas block and get the VB6 tuned even better next range trip to reduce some recoil.

Conclusion
I have 6 CAT cans currently, and have enjoyed each of them as top performers. The VB6 is no slouch. I ended the day with 120 rounds through it and hits at 1000 yards (easy with this rifle). I am looking forward to shooting it even more in the coming months and am only waiting on a BPG can cover to finish out the rifle.

Let me know if you have any questions and I’ll do my best to answer!

Centurion Forged Upper Receiver
BCM Parts
DD Lower
SOLGW LPK
Geissele SSAE
Geissele MK4 Rail
Criterion 14.5 Barrel
ADM 6ARC BCG
MILSPEC buffer tube
Geissele Super42/H2
SLR Sentry 7 AGB
Magpul DT-PR
DAC Grip
LPM Eclipse P/W
OCL Polo K
Reptilia 1.7 34mm
Leupold MK4HD
Atlas BT65

The sound and gas reduction are both excellent! I would not consider it hearing safe at this barrel length, but I could see it being that on a longer barrel, which is its intended use case. I only have 40 rounds through it so far, so we will see if there is any change in sound over time. I didn't get any noticeable gas blown back in my face and had no signs of any additional carbon anywhere inside or on the magazine. At 100 yards I found no measurable shift in poi. It seems like a solid choice for a longer barrel/ DMR/ precision setup.

I was planning to start a longer build today, to use this can in more of its sweet spot, but then I saw that Craddock Precision has some 11.5" RTR barrels in stock and I love a shorty 6 Arc, lol! Now I guess I need to find another can to go with that one, thinking maybe DA CT5P...

For anyone wondering about the gap between the handguard and the suppressor, I got you. I measured it, it is exactly the thickness of 4 post it notes.

Got a receiver set and Scionics ARCA rail in.

Have to get a barrel spun up and figure out what for parts, optic, and can I’m going to use on this thing.

Piston 6arc

CAT VB6 showed up. Testing it out on my 20” Proof PXT tomorrow with some factory and handloads. I will post a follow up report after shooting!

Finally able to ge these out to a match this weekend. One of our testers shot the Geissele Gas Gun competition at Coleman's Creek yesterday and put some rounds on the 20rd and 27rd test mags. He ran an 18" Noveske DDF 6arc.

First post - Went to my first PRS match 2 weeks ago and love it. I am using an EC Tuner Muzzle Brake. So I saw about 98% of the competitors using bolt action and out of those about 75% using suppressors and some with muzzle brakes at the end ( are we calling those hybrids ? )

So my question to yall is what would yall recommend for a gasser for PRS ? I don’t care about noise as much as shooting flat and minimal muzzle rise. What are yall running ? I’ve heard of the OCL 556k, Tenent Limited, TB magnum.

I appreciate any feedback.