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Suppressors 338ARC AR can choice: 9mm or 338?

Picked up a KAK 338 ARC 8.5 AR15 barrel on impulse and figured it's a good excuse as any to get a 9mm can.

That said, are 300BO sub rated pistol cans also good for 338ARC? If so, anyone have a particular favorite?

I don't care so much about overall sound performance or weight as I do flash/heat reduction since I plan to shoot with a dedicated thermal sight.

Ideally something HUB compatible.

If *not* a 9mm can, should I just send it on a 338 magnum can from Surefire or TBAC?

Accessories Scammer alert @DHCM85.

Look like some asshole scammer @DHCM85. created an account almost identical to mine, just with a period at the end. He reached out to another member that I was working a deal with attempting to collect payment for the item. He has been reported. Please don’t post “an I’ll take it” or “message sent” on the for sale posts guys. It’s just an invitation to be scammed.

Carl Zeiss Sports Optics to close shop

Carl Zeiss Sports Optics GmbH has announced that the production of optics for hunting and nature observation in Wetzlar is facing closure. Seventy employees will be affected.

Wetzlar. Carl Zeiss Sports Optics GmbH will cease production in Wetzlar by the end of 2026. The company announced this in a statement on Tuesday. According to Zeiss, approximately 70 jobs are affected by this decision. Employees were also informed of the move on Tuesday. Carl Zeiss Sports Optics GmbH is considered the world's leading manufacturer of binoculars, riflescopes, and spotting scopes. It is a subsidiary of Carl Zeiss AG.

Company speaks of “ongoing economic losses”
The challenging geopolitical and economic conditions are having varying effects on the Zeiss Group's business units. Demand for analog binoculars, spotting scopes, and riflescopes in the premium segment is declining, according to the statement explaining the reasons for the upcoming closure at the Wetzlar site.

“Price and competitive pressure, the deteriorating consumer climate, the disruptive shift to digital products, and the structural cost disadvantage in Germany are leading to ongoing economic losses in the production of optics for hunting and nature observation in Wetzlar,” explains Joachim Kuss from Corporate Communications at Zeiss Photonics & Optics.

The production of binoculars, spotting scopes, and riflescopes in Wetzlar will therefore only continue until the end of 2026. However, Carl Zeiss Sports Optics will continue to be represented at the Wetzlar site with customer service, logistics, and quality assurance.

"The employees in the Wetzlar production facility are doing an excellent job, and everyone involved has fought to ensure that we can continue producing here in the future," said Torsten Scheidt, Managing Director of Carl Zeiss Sports Optics GmbH, in the statement. However, the market changes, particularly in recent years, are so significant "that we cannot maintain the current value chain." In the coming months, discussions will be held with employee representatives to discuss how the affected employees can be actively supported and how the job cuts can be implemented in a socially acceptable manner.

The company's press release makes it clear that the focus in Wetzlar is on semiconductor manufacturing: Zeiss is represented at the site with its Semiconductor Manufacturing Technology (SMT) division, which has grown significantly in recent years. A second production site for the semiconductor division is currently being built in Wetzlar. The so-called multifunctional factory in Dillfeld will expand production and development capacity by approximately 12,000 square meters. Upon completion in 2026, Zeiss SMT in Wetzlar will employ approximately 500 people.

Does anyone else ponder the narrow range of projectile diameters?

The vast majority of projectiles shooters use fall between .22 and .30 - a range of just 8 hundredths of an inch. Sure people use .17s and 50 cal but I bet over 95% of rifles fall between 22 & 30.

I am sure this range was determined based on trial and error over the evolution of rifles I just find it kind of fascinating that there is such a small range that works. Looking at competition shooters most are using between .243 & .264 a range of 2 hundredths of an inch. It is pretty wild how well we have narrowed down what is best.
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Bergara early M40A3-ish in 22lr

This is a teaser for a new project that I'm working on. Bergara 14X rimfire action in an early Mcmillan A4 "Big Hook" Stock.

Bottom metal is a Hawkins M5 that accepts AICS mags. I know the early M40A3's had DD Ross but I still wanted to use the Magazines that came with the rifle.

Harris 6-9 Bipod with the KMW pod lock and TIS Sling.

BO M40A3 spec rings with an airsoft copy of the MST-100 scope. Looks great but not sure of how it's going to function.

I hate to geek out and spend this kind of money on a 22 but this is a rifle I can shoot in my backyard. I can't say that about any other rifle I own.

1st pic is of my rifle...second 2 are inspiration pics...I love these early M40A3's.

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Firearms 2014 AI AT /AO SOLD* barrels and mags remaining

I have for sale a 2014 quick lock, AI AT that has been installed in an Accuracy Obsession chassis with an AX butt stock conversion, GTAC AR pistol grip conversion, and AI competition trigger.

The action is bedded into the chassis just like it was in the original AT chassis. The AX buttstock conversion also required bedding. I bought the rifle used just for this project and have long since sold off the original chassis. It has a Hoptic check pad(plus two spare replacements), a PLF338 3D printed bag rider along with the original AI bag rider. MPA EVG grip. The competition trigger is set to what I would guess is 1.75lbs and has never had a hiccup. It has been 100% reliable so it's kind of a unicorn. The chassis comes with two internal weights. A 1lb and a 2lb. It has full ARCA and MLOK. The rifle will come with one mag. Your choice of the modified AW that has the +2 MDT extension or an unmolested AW mag. No barrel. No scope. The chassis has some cerakote wear marks and the bolt face has some fire checking from the previous owner pushing 308 and Varget hard. I've had no issues with the bolt or entire rifle for that matter. The bolt is stupid slick. Large Primer firing pin. Everything functions and shoots well. The 6.5CM and 6CM barrels shoot really damn well. $3400

Available to the buyer is a total of 10 AW mags.

9 additional mags $500


Proof AI prefit in 308W. 26", 1600rds $600

Proof 26" full bull 6.5CM by Fritz at Black Canyon Customs. 560rds $800

Proof Comp contour 6GT, 24" by Straightjacket Armory. 1200rds $300

Proof Heavy Palma 6CM, 26" by Straightjacket Armory. 680rds. $300

$1200 for both CF barrels. $1500 for all four.



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300yd groups
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Must ship from FFL to FFL.

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6BR Barrel with .050 more freebore

I started shooting 6BR on an MPA chambered barrel a couple years ago and it shoots Hornady 108s great with .035 jump. I just got an AI AT-XC and put a Mile High Factory WinTac 6BR barrel on it. When I measured the AI barrel, it has .050 more freebore to the lands that the MPA barrel. I haven't seen this with other calibers when getting different barrels, they are all pretty close, but .050 seems like a big difference. I used the standard OAL tool to find the lands on both barrels with the same bullet.

Anyone run into this before - these are both very high quality barrels and smiths? Is there a 6BR variant that is shorter and longer? I am planning to load for the 2 rifles differently and run the AI rounds longer to make up the difference.

Hornady 108 ELDM
MPA - 2.350 OAL to Lands
AI - 2.400 OAL to Lands

SOLD Two NF ATACR 4-16x42 MIL-XT

Two NF ATACR 4-16x42 MIL-XT F1 C615 scopes for sale. Both are in excellent condition with no issues. Very light and minor ring marks. Both are virtually identical in condition.

I have way too many scopes and am thinning the herd.
BOTH SOLD

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SOLD 6.5 Creedmoor Peterson brass

-3 boxes of 6.5 Creedmoor Peterson brass. Only opened to inspect. (***SOLD***)
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M4A1 Block I (***SOLD***)
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MK12 Mod Holland (***SOLD***)
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-7 PRC Hornady ELD-M factory ammo. 4 boxes. (***SOLD***)
•••••••

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AB Quantum Major Update 3.4

AB Quantum™ Update 3.4 is here!
We’re excited to introduce powerful new features that will elevate your shooting experience:
  • Grouped Sectors: Organize your targets into multiple stages, each containing several Target Cards. Ideal for PRS, NRL Hunter, or any custom course of fire. Now you can manage, build, and share setups with ease—instantly via QR code!
  • Seamless Integration: Share your Target Card with Kestrel and the latest Garmin devices for a smooth, field-ready experience.
  • Column Editor for the Target Card: Customize and arrange columns to match your specific needs for quicker, more efficient setups.
  • Relative Winds: Work seamlessly with Grouped Sectors to provide accurate wind corrections for every shot, ensuring precision on the range or in the field.
  • Wind Reference Tool: Visualize your projectile’s flight path and adjust it based on your environment and equipment for better accuracy and flexibility.
  • Upgraded Target Controller: Streamline your setup with azimuth, inclination, and wind speed all in one intuitive interface.
  • Pro Trial Offer: Ultralight and Elite users can now access a free trial of the Pro license—unlock the full potential of AB Quantum!

Sectors and Grouped Sectors now gives you the ability to create multiple target cards in ungrouped sectors. Or to create shooting facilities, entire matches, and more with Grouped Sectors. For some devices (Kestrel, Garmin Tactix 8, and Garmin Instinct 3 Tactical) you can also transfer a target card to those devices (within the means of that devices maximum number of targets per target card).

Sectors can be shared with other AB Quantum users. This allows a facility director, match director, teammate, co-worker etc to easily share a grouped or ungrouped sector with another user.

Relative Wind now allows you to pick between clock (DOF) and North (Compass) wind modes. This is useful on its own, or when paired to a compatible Calypso AB Mini or Kestrel.

(Pro Users) The Target Card now has customizable Columns. You can rearrange the columns, or turn ones you don't want on/off. The Target Card also now has Direction Of Fire, and Inclination Buttons built into it for easy manipulation of the targets on the fly.

The Target Controller and Environment Controller have been improved based on user and field testing feedback to improve user experience.

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Download AB Quantum for free on Google Play or the Apple Store.
Learn more about AB Quantum at https://appliedballisticsllc.com/ab-quantum/

Rim-x MCR

Yesterday my Rim-X conversion from MCR arrived. I got her put back into its chassis and headed to the range. Johnathan did a great job! The rifle now sports a 25” MW 13 twist. He also spun up a Bartlein CF in 16 twist for it, just incase I get the itch to use it for hunting. Target is the first 50 shots at 50 yards. I think its gonna do just fine.



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