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Is AB Quantum calculating wrong? New to calibration....

So I've been trying to watch Docs videos. I have a Garmin we use to Chrono a Kestrel that I record atmospherics when zeroing. (I know it's overkill)

I'm using AB bullet library G7 for a 7RM 24" barrel, Hornady ELDX 162 grain.
His velocities at barrel are 2878, 99y range, sight height 1.81, 9.50 twist. (SG 1.44)
  1. Zero - (w/ Kestrel 5700X recording during zero and taking the average)
    • Temp 71F
    • Pressure 25.11
    • 38% humidity
  2. Zero Height/Offset - Hornady Group Analysis app
    • 0.17 Elevation
    • 0.76 Eindage
    • He was high and right.
  3. Then a tall target test. Again used the Hornady Group Analysis app
    • SSF Windage - 0.92
    • SSF Elevation - 1.16

Then we shot to 1185 yards and the ABQ app was calling for 10.35E and he missed high. We dialed him down to 8.9E. When I put this in the CDF, it won't apply. It reverts to an elevation of 10.35. The weird thing is that if I remove the Zero height/offest and SSF E/W, ABQ gives the correct dope of 8.9E. Again, this is my first time digging into these details. We have never shot far enough to feel that we need this data, but now we are starting to push beyond 1k.

Does anyone have any thoughts?
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SOLD Left Hand Tikka T3x KRG

Selling my lefty Tikka T3x 6mm Creedmoor

Nothing at all wrong with it. I just have others that I shoot more. It was originally a dasher barrel with about 2500 rounds on it. It had about 8 inches cut off the breech end to get past the fire cracking and get to nice clean barrel and shave a little weight, then recut and chambered 6cm. It shoots great and has about 200-300 on it now as a 6CM.

Left handed Tikka T3X Stainless
Bartlein Heavy Varmint 16" 5/8x24 threads.
Setup with WTO SwitchLug.
KRG W3 with enclosed ARCA forend modified for left hand
Timney Tikka trigger with safety removed so it can run on a lefty.
Fancy rattle can

No scope or suppressor included.

$1500 shipped to your FFL.

No trades.

Venmo gift or cover the fee. Zelle is accepted too. No PayPal. Mine is locked up.

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Firearms Remington M24/40XB, 10x Leupold package

I picked this rifle up on trade from another member and I absolutely love it. The gun ADD kicked in, though. I put just over a box through it, and it appears to have been shot very little prior to me shooting it (the paint around the crown was barely chipped). It shoots 175gr FGMM extremely well and that is all I have tried in it so far.

I'm sure some other members who are more familiar with these rifles can chime in about their history, but I gathered that it is the predecessor to the M24 SWS that had the adjustable stock. I called it the A1 just because it was the most I could find with a little Google searching, but I could be wrong. This has the more rare "B" suffix serial number and the barrel is marked 7.62x51 for the chambering. The trigger is absolutely amazing in here as well.

The rifle is topped with a Leupold Ultra 10X-M1A with the Premier Reticle crosshairs. It also includes the original factory paperwork for this rifle which is pretty cool. This would be an awesome gun for someone who is into collecting things more than I am.

$4,500 shipped for the package. I would trade it toward an AI AX (2014 style), AI AXMC, or AI AXSR. For the long actions I would prefer 300NM or 338NM but I can always swap barrels. Other than that I am pretty set on trades but always open to high end optics in FFP and Mil/Mil.


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Firearms 1965 Browning superposed pigeon grade 12ga

Browning 12ga superposed 26 1/2 " pigeon grade shotgun. Manufactured in 1965 the gun has been fired 2 times. Modified and improved barrels this shotgun is in pristine condition. Has everything that was included from factory at date of purchase. Will ship from ffl to ffl. $6,000
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Shipping is included. For more pictures don't hesitate to contact me.
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300 Blackout Barrel Twist

I have been doing some research and they now have 300BLK barrels in much faster twist rates. Up to just a few years ago 1:8 or 1:7 was the main go to for manufacturing. Now though there's a few 1:5 twist on the market.

I loosely know the back story, IE, Q and Kevin B introduced the faster twist, and claimed more rotational energy is better in certain situations. Also, and this is my main take, that it makes even shorter barrels viable options. If I'm not mistaken even Sig has factory options using 1:5 twist rates. If you are shooting a 5" barrel it seems like that twist would probably help make that possible for stability and your suppressor's sake.

If you have any experience with that subject, or if you know of videos, blogs, tests, etc please feel free to post it below. I'm in learning mode so share what you got.

Coyote Hunting Chest Rig

I know this is "snipers fieldcraft" but I know we all love a good day smakin some dogs. Anyone come up with a chest rig to manage a remote, mouth calls and bonus cookie if you got an ass cushion to keep you're feet from fallin asleep. I use lanyards currently and getting annoyed with them. Just wanna see the ideas with current available products you modified or found thay work for you.
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Woox customer service sucks

I received my order yesterday. I have been waiting for this chassis for a build. I was missing a Hawkins M5 DBM. I went to call and no number to call only email or chat. Is this how they treat everyone. If an issue is found problems should warrant a call and be taken care of without the customers jumping through hoops. My issue is Woox didn’t send all of my order. Woox should now jump through hoops to fix my issue. Not the other way around.

I will keep everyone posted on how they fix this issue.
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Reactions: carbonbased

Night Vision WTS *Price Change* Rhino Mount, PVS-14 Dual J-arm Bridge, J-arms, Weapons Mount, Bag

Norotros Rhino Mount Arm Black $30 Shipped CONUS SOLD RanchhandTCR
PVS-14 Dual J Arm Bridge Mount $50 Shipped CONUS SOLD RanchhandTCR
PVS-14 J Arms Quantity 2 $25 $20 $18 Each Shipped CONUS One Sold cecchino76 Sold BC47
PVS-14 Weapon Mount $40 Shipped CONUS SOLD RanchhandTCR
PVS-14 Storage Bag $18 $15 Shipped CONUS

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Please IM with and questions or offers. First "I'll take it post wins", USPS MO, PayPal F&F Discreet Gift, or Venmo

SOLD PRS Competition Rifle – 6 Dasher

For Sale: New PRS Competition Rifle – 6 Dasher

Serious precision rifle shooters—this one’s ready for the match line.

Build Specs:

  • Action: Impact Precision 737R – proven reliability and smooth cycling

  • Chassis: MDT ACC Elite – full-weight tuning, adjustable ergonomics, built for competition

  • Barrel: Proof Research 26” Competition Contour – chambered in 6 Dasher for ultimate precision

  • Muzzle Device: APA Fat Bastard muzzle brake – excellent recoil reduction and control
This rifle was purpose-built for PRS competition and has all the right components to get you on target quickly and stay there.

Whether you’re looking to step into PRS or upgrade your current rig, this setup is turnkey—no compromises.

💰 Price: $4100.00 (shipped to your ffl) {credit card or money order}
📍 Location: Athens, TX

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