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20" barrel 6 Dasher/BRA/BR?

I've been thinking about running a 20" barrel on my 6mm instead of the normal 28". Anyone else running a shorter than usual barrel on their 6mm? I looked at GRT real quick to get an idea of the trade off, and it would put be at around 2600 fps running Berger 105. Reason I'm looking at going shorter is that a 28" barrel + 8" suppressor puts me in an awkward position when moving and just gets ridiculous.

SOLD ZCO 527 MPCT2x & 419 mount. $4,075 shipped and insured. @kbiss

I have for sale an 5-27x56 Zero Compromise Optic. This scope has the 10 mil NLE turret with the IDTS marking tape with locking windage and the MPCT2X reticle. Also has an area 419 mount 1.54 high I believe with diving board. And all items in box from when I purchase new.

ZCO 527 and 419 mount $4,075 shipped and insured.

IF I have a buyer for both I'll split
$3850 shipped for scope, and scope tape
$325 for the 419 mount and diving board.

Pm with question.




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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?

The below happened when I was at the range today and manually cycled the action to make sure there wasn’t a sticky bolt close/open. It closed and opened fine but when the cartridge got to the point where it should have shot out of the upper it didn’t and instead it just clung to the extractor claw. I had to pull it off by hand. It didn’t happen for every round in the mag but it did happen maybe 2-3 times out of 10. I checked and the ejector plunger moves freely/isn’t sticky. Mag being used was a duramag 6.5 gendel 10 round.

This is a rubber city armory bolt with sprinco 5 coil extractor spring (with insert but no o-ring) and sprinco ejector spring with only 100 rounds on them.

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CMP has sniper rifle up for auction

fyi see below










Bolt Action Rifles

DARPA XM-3 Sniper Rifle S6544653
Listing # 8921

Bidder or Seller? Sign in for your status.


Listing Format:Auction
Current price : $2,500.00
Starting bid:$1.00
# of bids:15
Closes: 11 Days, 16 Hours
Location:Alabama, United States
Started: 12/9/2024
Ends: 12/21/2024
Seller: cmp1
View this user's other listings
High Bidder(s): CMPUser30773
Ask the listing owner a question
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DESCRIPTION

DARPA XM3 Sniper Rifle with Scope
Iron Brigade Armory
Serial Number S6544653



Highlights:
Receiver: Remington 700 Short Action
Caliber: .308
Bolt: Large Ball, Last 4 of SN on bolt handle
Bi-Pod: Mounted on rifle
Scope: Nightforce NXS 3.5-15x50, SN: Q04957 very clear and crisp
Rings: Nightforce
Receiver mount: Iron Brigade Armory, Last 4 of SN stamped on bottom
Markings & Other information:
Iron Brigade Armory assembled DARPA XM3 Sniper Rifle system in STORMCASE iM3200 case.
  • Stock is medium green in color
  • Barrel is clean and well maintained. Last 4 of SN stamped on the left side.
  • Included data book tracks 535 rounds of various military sniper grade ammunition.
  • Weapon Record Books (2)
  • Rifle case also includes:
    • Suppressor cover,
    • Suppressor carry pouch,
    • J. Dewey cleaning rod
    • serialized tool case w/ basic hand tools and torque wrench.

Sold as is
All photos can be viewed here.

PAYMENT DETAILS

Payment Details: Payment must be received in 10 days from auction closing date. If payment is not received within the allotted time, item is forfeited and subject to next highest bidder or re-listing. Checkout instructions will be emailed to auction winner at time of closing. CMP accepts Visa, MasterCard, American Express, Discover, personal checks, money orders and bank (cashier) checks. CMP does accept debit cards, but if using a debit card please provide the CVV2 # from the back of the debit card.

BIDDING

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12/9/2024 7:47:16 AM Contact | Terms & Conditions | Privacy Policy | About Us | Fees

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What Is Weapon Employment Zone (WEZ)?

We have made a video to help better explain, and understand what WEZ is. How it can be used to to further improve your shooting and hone in areas to work on. Or to use it to understand new equipment and cartridges and if they will benefit you or not. One of the many use case scenarios for WEZ is determining whether or not switching to that hot new cartridge is really going to give you a jump in performance or not. Or what piece of equipment or skill set might be holding you back etc.



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Cleaning for Carbon

Had my first carbon ring cause issues and of course, now am paranoid.

Got the borescope gave it a thorough cleaning. What the F am I looking for?

Here'a pic with and without a piece of brass

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Which area am I trying to scrub out--when i was getting marks on bullets, im guessing it was in the throat, but there is that black shadow right there at the edge of the chamber--which one am I trying to remove?

SOLD AO / Vision grip skin replacements for AI

For sale:

Aluminum grip skins for AI / AO / Vision chassis. These were purchased directly from Vision. I ended up with two sets and am only keeping one. These are raw, no finish on them. Includes the delete for the folding stock detent, one thumb rest, and the pistol grip screw.

$200 shipped SOLD

I accept discreet PayPal or Venmo (F&F ONLY) Thanks for looking!

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6 Dasher with 109gr Berger Hybrids

I am currently about to start load data for my Dasher and am looking at what works for you guys out there (powder, charge wt, bullet jump, ect). I want to keep this thread strictly about data regarding the Berger 109gr Hybrid in the 6 Dasher, so please leave out your favorite 105gr VLD/Hybrid comments. I am using Alpha Brass and rem bench rest 7.5 sr primers. Thanks

KRG impact action mod

Im sure it's been covered in threads but after a ton of research I couldnt find a thread that covered WHAT exactly to file away.

Hopefully this helps those who are going to run the krg impact action combo.

This little ridge around the screw is what needed to be reduced. As well as a low profile screw head, which I just filed down as well
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Using a small, flexible file I slowly started to reduce that lip. Of course it helps to tape off the surrounding areas to avoid unwanted filing.
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After a few hours of filing and checking the trigger hanger clearance I finally got enough material removed. I did test this without the front trigger hanger screw installed.
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I went to the local hardware store to match threads and bought a couple spares. Took them home and filed down one of them to be low profile. It now sits flush without any wobble from the hanger or screw.
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SOLD WTS: Leofoto SO-362CX Inverted Carbon Fiber Tripod with Vortex Ball Head - $450

Selling my great condition tripods. I have the following available:

Vortex Radian Carbon Tripod with Ball Head - great condition, some sticker residue on the legs. Ships with spiked feet and Vortex tripod tool+Allen wrenches - $450. Tripod sold

Vortex Switchback Carbon tripod with ball head. Ships with carrying case, manual, tool/wrenches and spiked feet. $325. Sold

Leofoto SO-362CX Inverted Carbon Fiber tripod with Vortex Leveling head. Ships with carrying case, head attachments and tools. $450. Leveling head sold, Tripod available with Vortex Ball head, pics added tripod Sold

Vortex Radian Ball Head still available

All prices include shipping/insurance to CONUS. I accept Paypal G&S +3.5%, Paypal F&F, Zelle, Venmo, USPS Money Order or cash FTF in central Arkansas.

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SOLD ARNVGS

$7500

ARNVGS- Gen lll thin filmed Elbits
2500+ FOM
31+ SNR
1 spot in left tube on the perimeter can see in pics
Have spec sheets and warranty card from
-STEEL INDUSTRIES-
About 5 ish hours of run time.

$7500- OBO

Possible trades plus cash depending.

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Headspace is not brass body

Finally figured it out. I was wondering why my bolt was hard to close after 3 firings and neck only die. I thought that bullet was too far out but it wasn’t. Also the headspace gauge/ Rcbs precision mic read 3 lines before zero. Meaning headspace is a touch smaller than spec. So why was it still hard to close.

So I took the plunger and firing pin off my bolt to see if after doing all my prep and neck sizing if it still did this. And yes it does not close easily. I decided to use my fl die with out the decapper and ball as I already use the lee collet neck die.

I put lube then put through die then cleaned and tried in rifle and this time it closed easily. I checked the Rcbs mic again and once again the measurement as on the same spot. It did not move. It seems the reason it was difficult to close bolt was because the body had gotten larger and once in fl die it shrank it to proper specs.

I had thought that measuring headspace also measured the body of the case. Shouldn’t the headspace grow taller if the body is pushed in??

I am really having hard time setting up my fl die and is why I gravitated to the neck die. When I use the fl die I notice that at times the head space measure ment is not always the same. Sometimes i have to screw in the fl die and make adjustments so that the headspace is smaller. When we fire the rifle the case conforms to the chamber. The chamber does not get larger or shrink. Why is the fl die not consistent. I make sure I have same amount of lube and same pressure on the press. But sometimes I notice there are cases that is hard to press and some are easier.

Basically I have to measure headspace of each case every time out of the fl die only when I feel a different resistant on the press.

Is this all normal. When I buy a box of Lapua brass and once fire the case and put through my fl die each brass may stretch differently I may have to measure each and adjust die each time.