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  1. D

    Griffin Enhanced Gas Pocket BCG

    I bought the GA full BCG Kit and also just a carrier during their sale. The complete kit went in a rifle that has a 16" Criterion Hybrid with RLG. That rifle using a full size Polonium is a lot of fun to shoot as it seems like the thing runs in slow motion recoil wise. When I dropped in the new...
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    Suppressor questions with PTR Vent 1

    You will get opinions on which mounts (suppressor and barrel) is the best, and every one will have their reasons. My reason is, it was what I started with. My first suppressor was a DA Nomad and I started with the DA Xeno interface (or whatever you want to call it). Once you start buying...
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    Suppressor questions with PTR Vent 1

    You will need a HUB mount for the suppressor and corresponding barrel mount. Typically you can get the barrel mounts in 1/2×28 and 5/8×24. One example is the Dead Air Xeno system.
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    Long shot: Is there any tool out there to attach to a drill

    I tend to use mine for turning necks. I don't buy a lot of Lee products, but this tool is one I won't be without. No, I wouldn't trim necks with the Lee tool either.
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    Any Thoughts On Why I Have To Bump Shoulder of New Alpha 6 ARC Brass For Gas Gun .004”?

    I suspect it isn't the shoulder causing your issue, it's the base. I've played with the 6.5 Grendel for a long time and the 6ARC for a couple years. I had a lot of once and twice fired 6.5 Grendel AA brass (Lapua) and it gave me headaches trying to fit that brass in a new Proof barrel. It...
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    Long shot: Is there any tool out there to attach to a drill

    Not sure if the Lee 3 jaw chuck was the tool mentioned above, but it will do what you want. I've had and used one for at least 20 years and it works as good as new.
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    What Could Cause Brass to get “stuck” on the bolt/extractor when manually cycling the action on 6 arc gas gun?

    Without looking or feeling the extractor edges, my money would be on Cascade Hemi's reply. I will always polish the "teeth" to make sure they are smooth. I have seen them pretty sharp. A cratex wheels, and about 2 minutes including looking at the finished product under a magnifying lamp, and...
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    6 ARC Gas Guns

    Agree. You can split hairs further by using starting data from the bullet with a similar bearing surface. That is getting deep in the weeds. With just about any cartridge I have worked up loads for (a pile of them), I start off in the middle of a listed range. I have never found accuracy or...
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    Shoulder Bump: 1.556" feels perfect – still size to 1.554"?

    Everyone has given good advice. Normally I would ask what does the target look like, but it seems you haven't gotten that far with your handloads. I have gone to the effort of pulling my firing pin and ejector (when able to) and I have moved on from that. I just measure 5 fired cases now...
  10. D

    6 ARC Gas Guns

    Unfortunately my Lapua/AA brass doesn't appear to have a heavier support area near the base. Lapua 6.5 Grendel cases were one of the original "belted case" cases in 6 ARC. I do not have the belted case issue with my converted Lapua cases, but they will swell some down low. My Wilson FL bushing...
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    6 ARC Gas Guns

    Being a bullet caster and using Lee bullet sizing dies for powder coated revolver bullets, I am very familiar with using this type of die as a pass through. When I saw the Sergeant of Arms belt buster die for .441" cases I bought one. I have hundreds of Lapua (AA) 6.5 Grendel cases that were...
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    6.5 Grendel

    I tend to run a stiff nylon brush in and out of the necks and that helps. I use the one's from Brownells and I chuck them in my vice milling machine on medium speed (Milwaukee Holeshooter in my vice). Since I have the time and the tools, I anneal every time and also use mandrels so my necks...
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    Fouling past the case neck

    I saw that number and just discarded the two zeros he had at the front. I suspect he meant .3 of a grain. I tend to have long barrels (26" at minimum) so I am in the 2835 fps range with hybrids or VLD's, but my charge of H4350 is higher than the OP is running. I do not remember loosing many...
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    Cleaning JP Adjustable Gas Block?

    As long as you put a drop or two of a good oil on the screw every couple hundred rounds, they don't seize in my experience. Well, that and cranking them in and out a set number of clicks (4 in, 4 out , and back to my setting). Matter of fact, I need to do this again....
  15. D

    Fouling past the case neck

    I'll throw something against the wall and see if any stick. 1-Hard brass. I did see where you mentioned you anneal. Did you really anneal. Depending on your machine/technique, you may just be heating the brass up some. 2-Larger "neck" chamber (not likely anyway). You mentioned you had a tight...
  16. D

    Struggling with 5.56

    Try the N140 before you move to something else. I use Varget, Re15, and N540 with 77's out of 10.3" with no issues. I don't notice any unburned powder in my suppressors.
  17. D

    6.5 Grendel

    I have 500 or slightly more pieces of AA brass. As I also have hundreds of Lapua 6.5 Grendel brass to compare it to and I can say the older AA brass is Lapua. I've weighed it, annealed it, sized it, sectioned it, shot it, converted it to 6mm ARC (I'm a glutton for punishment), and loved it. I...
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    Replacing the barrel on my Medium weight 14.5 inch run and gun upper

    While my Criterion Hybrid doesn't shoot as small of groups as my Proof, it does have only a 1-8 with a thick reticle compared to the Proof's 5-22 MOAR-T. It will shoot under an inch for 5 at 100 so I am not unhappy. Someone else mentioned the Criterion barrels behave and that is my opinion...
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    Who cleans BCGs in an ultrasonic cleaner?

    I have before but my BCG's get wiped off everytime I shoot so rarely get crudded up. When I have used my US for the BCG, I use hot water (and put the heater on) and a squirt of dawn. I do disassemble the BCG and will use a patch on a stiff nylon brush to get the normal carbon out of the bottom...
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    MK 16 handguard

    Maybe I should clarify my earlier post. The .750" SA set screw GB will fit under the mk14 and mk16 but the handguards may not work on all uppers. I have run into both rails not fitting "thick" uppers to include a CMT I just installed a mk16 on last week. A small amount of measurements and...
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