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  1. Ledzep

    Zero angle question

    There's no follow-on correction needed after having the app calculate zero angle regardless of base incline. Just so that's clear. However, if you went from a rifle with a 0 MOA base zero angled, then put in a perfectly machined 30 MOA base, you could add 0.5 degrees to your zero angle and...
  2. Ledzep

    Bullet stabilization issues? .300 Norma Mag

    If you ever have questions about stability with Hornady bullets or bullets in the 4DOF library, use 4DoF to check gyro. It uses a physical model of the bullet, not a generalized Miller style formula. Here's the 230 in a 10 twist at sea level. Should shoot groups fine but will probably have...
  3. Ledzep

    Bullet stabilization issues? .300 Norma Mag

    230 Atip should be Okay in 1:10 (but barely). 250's will not be.
  4. Ledzep

    Is bullet still stable/accurate after it goes subsonic?

    It's been a minute since I looked at this subject. I ran a bunch of 6DoF simulations but the simulations are always subject to the input/boundary conditions vs. reality so it can be difficult to verify if any of it is real trends or just junk data. I think years ago Jayden did a bunch of...
  5. Ledzep

    Swiss K31 Sniper Build

    Hey ruin as many as you want to! Just makes mine more valuable :D
  6. Ledzep

    I Spy New Baby Razor G3 4-24

    Just when I thought I could be happy with what I had....
  7. Ledzep

    The spirit is willing, but the flesh is weak......

    Smoke-checked the steel pole holding up the heavy bag doing kicks last night.... Thinking I got off easy :D
  8. Ledzep

    PRS Talk What’s your favourite backpack

    https://hillpeoplegear.com/Products/CategoryID/3
  9. Ledzep

    Which bipod for PRS and NRL Hunter

    Standard single pull Ckye pod. In PRS if you need a double or triple pull someone in the squad will have one. (Most of the time, even when the whole squad thinks they need it.. you don't need it). If you need more height in NRL Hunter, use a tripod with a tac table. It's usually set up to...
  10. Ledzep

    16-18 inch shorty rifles

    Cut the front 16" off of last year's match barrel to get into fresh rifling then whittled a bit on the Bridgeport. It rings every time it gets bumped... lol we'll see if it shoots worth a damn. Should be a good beater coyote truck gun. ETA: Mack Bros Element XLR Atom + Sig folder HS Precision...
  11. Ledzep

    Good morning, let’s see your coffee delivery devices.

  12. Ledzep

    Vintage Sniper Rifle Picture Thread

    Appropriate piece of laminate tracked down! Also fitted a reproduction mount to the rifle and bolted in a post-war Hensoldt. Figured it has the holes might as well bolt an optic on for looks.
  13. Ledzep

    22arc versus 6 arc

    No AR Comp data on file for 75ish gr. projectiles, sorry.
  14. Ledzep

    22arc versus 6 arc

    Not off hand. I'm out of town for a few days but I can look when I get back. I only do 22 ARC for thermal night hunting and run 62 factory ammo for that. Haven't stepped into reloading it yet.
  15. Ledzep

    22arc versus 6 arc

    Most match bullets are on a sliding scale from about 280,000rpm( begin grey zone) to 380,000rpm (black). Really depends on temperature and bore geometry and surface finish. For a 7 twist that's about 2700-3700fps. I would guess most people won't see problems until they're over 3100-3200fps...
  16. Ledzep

    Nickel Plated Hornady 308 Match?

    It's older. May have been a TAP SKU or old premium match product. Not sure. We haven't stamped "match" heads for at least 7-8 years now. Eta: I should say, "that I know about". 😀
  17. Ledzep

    DNT is gonna let us do a reticle

    Real pioneers, the Swiss...
  18. Ledzep

    DNT is gonna let us do a reticle

    Am I too late?
  19. Ledzep

    Metric trajectory correction formula

    While the linear units used with angular measures tend not to be critical for practical application, Radians are, in fact, the standard SI/metric angular unit.
  20. Ledzep

    62 ELD-VTs and twist rate

    Should be fine at 1.3. Will have some AoA related drag but will likely still group fine. This was a 62gr at 3450 in a 1:8" twist.
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