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Gas gun - aero enhanced upper slop

I’ve noticed poi shift between shooting barricades and shooting off bipod, so I started looking at monolithic and semi-monolithic uppers which led me to want to try out the aero enhanced upper. I used to run bcm uppers and am very familiar with the thermo fit between the barrel and upper. This aero upper is very loose it’s like it’s oversized. I’ve seen various articles and forums about shimming and also bedding with loctite or jb weld. I’m wondering if there is a company that is making barrels with an oversized barrel extension or if anyone recommends a barrel manufacturer that makes a barrel that would be snug in an aero upper?

6 ARC Gas port erosion

I have a 22” Bartlein 6mm ARC AR. It is a rifle +2 gas system. I purchased the barrel and bolt from Precision Machine in WV. I have about 400 rnds through the barrel and get mediocre accuracy. The port fell on a land and it’s giving serious erosion issues. I believe that it is so bad that I am getting bullet deformation. I post here to have some experts give their opinions, maybe I don’t have an issue, please help me decide. I chose 6ARC for a precision auto loader build due to its resemblance to my 6BRN and PPC cartridges. I will post a picture of the build and some development targets shot at 100m. And some borescope photos. I appreciate you gentlemen and your knowledge. Thanks for your time.
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Precision Rifle Gear New Light it Up accessory for the send it level

Hi all. Just wanted to show off my new light it up!
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If you want to see how it works and general updates I have on the kit (how to assemble, field testing experience, etc.), check out the Instagram account I made: https://www.instagram.com/light_it_up_fiber_optic?igsh=MWNzbHV6eGJkMjR0cw==&utm_source=qr

-Kyle

SOLD Terminus Zeus QC Short Action

FS: Terminus Zeus QC Short Action
.308 Bolt Face
Right Hand
Only 976 rounds logged on this action

$1250 my FFL to yours. *Sold pending funds (again). If buyer backs out the next guy on the list will be contacted.

Zelle or Venmo preferred

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AI Data Centers Are Causing ‘Distortions’ in the Power Grid from Coast to Coast


The rapid growth of AI data centers across the U.S. is not only straining power grids but also distorting the quality of electricity delivered to homes, threatening damage to appliances and increasing fire risks, according to an analysis performed by Bloomberg.
A recent report by Bloomberg claims that the explosive growth of artificial intelligence is putting an unprecedented strain on the U.S. power grid, and it’s not just about keeping the lights on. A new analysis by Bloomberg, using data from Whisker Labs and DC Byte, shows that the mushrooming of data centers to support AI is distorting the quality of electricity delivered to millions of homes across the country, especially in areas like Chicago and Northern Virginia’s “data center alley.”

The problem, known as “bad harmonics,” occurs when the normal flow of electricity in steady waves is disrupted, leading to erratic spikes and dips in voltage. Whisker Labs, which tracks power quality using roughly 1 million residential sensors, found that more than three-quarters of the worst-affected homes are within 50 miles of significant data center activity.
Sustained exposure to distorted power can cause home electronics to overheat, make motors in appliances like refrigerators and air conditioners to rattle, and over time, lead to billions in damages. But experts warn bad harmonics are just the tip of the iceberg, foreshadowing deeper problems engulfing the nation’s power infrastructure.

“Harmonics are a pretty good canary in the coal mine for early signs of stress and problems,” said Bob Marshall, CEO of Whisker Labs. Left unaddressed, power quality issues can snowball, causing voltage surges that spark fires or sudden sags that trigger blackouts.
The core of the crisis lies in the insatiable appetite of data centers, which can suck up 10,000 times more electricity than a single household. The U.S., which operates the most data centers globally, is projected to see a 16 percent surge in power demand over the next five years, triple last year’s estimate, largely driven by new data centers.
This is straining a grid already burdened by aging infrastructure, extreme weather, and the electrification of transportation and heating. Yet for decades, grid investment has lagged as electricity use remained largely flat — until now.
The fallout is apparent in Chicago, where over a third of sensors showed consistently high harmonic distortions, and in Northern Virginia, the global data center capital, where distortions exceeded acceptable industry limits in areas with facilities coming online or expanding.

While urban centers bear the brunt, the data center effect spans rural America too. Regardless of population density, Bloomberg’s analysis found sensors closer to data centers consistently picked up more distorted power than those farther away.
Experts say several culprits can be behind bad harmonics, from industrial machinery to renewable energy inverters. But the strong correlation between data center proximity and power quality erosion points to their outsized role.
Some remedies, like dedicated substations and power filtering equipment, are being deployed. But a key hurdle remains the lack of granular, house-by-house power quality monitoring by most utilities, due to prohibitive costs. Consequently, distortions ravaging home appliances often go unnoticed until they escalate.

“Embedded in your contract with your utility is the right to receive a certain quality of power,” said Hasala Dharmawardena of North American Electric Reliability Corp., which is studying data centers’ grid impacts. “We need to make sure we measure it, and that our consumers get the power quality that they deserve.”
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New Brass too short?

Brand new to reloading. I’m having issues with light primer strikes. I thought it was related to primer seating depth which i’m working on. This round ( the first photo) got stuck and had to be tapped out with a rod. So i tracked down a case gauge and perhaps the new brass isn’t quite to spec. The brass sits down and is not flush.

Most of them 90% (second photo) seem fine.

My Process:
New Starline 223 Brass
Run - neck expander mandrel
Prime - BR-4
Powder - Varget
Seat bullet - 80.5 Berger


Is this common with Starline brass? Other brass?

Is there a way to fix this on the brass that is too short?


Thanks
Newbie reloader.



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AR question

I have a couple AR 15's in 556, nothing fancy, just PSA's, and a really nice Mega monolithic rail in 6.5 CM. I love the Mega, it is deadly accurate. I've been thinking about different calibers so the question is, what calibers can I switch to on each rifle. Second question, how will the lowers mate with non matching uppers, like an LMT or LaRue on the PSA, or anything desirable on the Mega? Mostly looking at the 556 as they are a bit more affordable to shoot. Pro's and Con's of various calibers? Thanks

SOLD MDT M5 DBM SA with Price Drop!

WTS: MDT M5 DBM SA, comes with screws, in new condition (no box). Here's a link to MDT's website where you can see the features and specs and why this DBM is way better than many other brands out there.

200 shipped to your door, acceptable payment methods are PPFF, Venmo and Cash App.

If you have questions, please let me know. (Uploading pictures once the website lets me)

Vintage Sniper Christmas Advent Calendar

I thought I might post an Advent calendar here in Vintage. Here is day one. Suomi KP/-31 with 40 round drum magazine.
Dec 1
Suomi KP/-31


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The Suomi KP/-31 (Finnish: Suomi-konepistooli m/31 or "Finland-machine-pistol mod. 1931") is a Finnish submachine gun that was mainly used during World War II. It is a descendant of the M-22 prototype and the KP/-26 production model, which was revealed to the public in 1925. It entered service in Finland in 1931, and remained in use until the 1980s.

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