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  1. Varminterror

    ELR/PRS Sight in

    What I would state as overwhelmingly important in this consideration - expanding upon the “calibration” explication above - is the simple fact that every ELR range and PRS range hosting matches will offer a 100 yard range for zero confirmation and/or measuring elevation offset. So choosing a...
  2. Varminterror

    ELR/PRS Sight in

    MPBR is an absolute waste of time and energy for an ELR or PRS rifle.
  3. Varminterror

    Do you drink anything while shooting?

    I use Liquid IV electrolyte packs and MtnOps caffeine packs in bottled water pretty often - mostly just water. I do occasionally drink an energy drink as a guilty pleasure before matches - I haven’t had a soda since 1996, and I’ve only had one cup of coffee in my life in 1994 - but a little...
  4. Varminterror

    Precision Rifle Gear Best Leofoto tripod for NRL/PRS?

    I have 3 Leofoto tripods: LN-364c, Ranger LS-365c, and SO-362cx. I use the compact LS-365c for hunting, and my son carries it for PRS matches because it can slip into my pack easily if he gets tired of hauling it - but it’s largely too small and I don’t like ball heads as much as leveling bases...
  5. Varminterror

    Precision Rifle Gear New Athlon Rangecraft Chronograph-Garmin Xero Killer?

    My second unit won’t sync, even though it shows connected on both devices. Hasn’t been my favorite feature.
  6. Varminterror

    Precision Rifle Gear New Athlon Rangecraft Chronograph-Garmin Xero Killer?

    There is a factory reset option in the settings menu on the device, but a deeper level reset can be accomplished by initializing the Athlon Velocity Pro past the preview screens, then holding the power button for 10+ seconds - it will power down then power up again.
  7. Varminterror

    Precision Rifle Gear New Athlon Rangecraft Chronograph-Garmin Xero Killer?

    Is that viewing the firmware version on the device itself or on your app? 1.40.61.1 was issued 2wks ago - but the device will only show “1.40.61” even when the app shows the updated “1.40.61.1”.
  8. Varminterror

    Precision Rifle Gear New Athlon Rangecraft Chronograph-Garmin Xero Killer?

    Which firmware version are you running? In my first 2 days operating 2 different Athlons independently as well as together, I was seeing ~20fps high offset compared to 2 Garmins and an LX. Upon calling Athlon the next day, they mentioned that doing a "hard reset" would likely fix that issue...
  9. Varminterror

    Precision Rifle Gear New Athlon Rangecraft Chronograph-Garmin Xero Killer?

    By and large, with 2-3fps spread between units, determining truth with the equipment I currently have available just isn't a reality - even firing a truing test at distance, I'm quite confident I'm not sufficiently skilled to determine on target a difference in velocity of less than 2fps. As I...
  10. Varminterror

    ELR/PRS Sight in

    PRS and ELR matches ALL have zero boards set up at 100yrds. EVERYONE uses a 100yrd zero - many ELR shooters will have an elevation offset in their zero, but the zero is still considered to be 100yrds + the offset. Any opposing advice is not from someone who is actually competing.
  11. Varminterror

    Precision Rifle Gear New Athlon Rangecraft Chronograph-Garmin Xero Killer?

    Just within the limited scope of that particular preliminary comparison - a test only conducted to determine validity of experimental design, I've already presented here multiple aspects of comparison, as well as demonstration of relative behavior. Many folks have asked, during the secondary...
  12. Varminterror

    Precision Rifle Gear New Athlon Rangecraft Chronograph-Garmin Xero Killer?

    The spread between all 6 units for 80% of the shots was less than 4.2fps. A 4.2fps error in a ballistic engine for my 6 creed load would be a MAXIMUM potential of 0.84" at 1k and with a simple RSS assessment on a rifle shooting .5moa at 100yrds shows it would only account for less than .1" at...
  13. Varminterror

    Precision Rifle Gear New Athlon Rangecraft Chronograph-Garmin Xero Killer?

    All 600 data points are depicted there, for you analytical pleasure. In general, for that data set, considering the variability of the ammunition, the resulting disparity among units, and the inherent precision limitation of these units, no, it's not really possible to tell which unit is...
  14. Varminterror

    Precision Rifle Gear New Athlon Rangecraft Chronograph-Garmin Xero Killer?

    I'm working now to compile some data from one of my preliminary comparisons depicted above. I had to eliminate two units from the test to prevent co-channel interference, but while I was conducting the interference test, I shot a 100rnd string of 22LR ammo (rot gut stuff, just for preliminary...
  15. Varminterror

    Precision Rifle Gear New Athlon Rangecraft Chronograph-Garmin Xero Killer?

    Like I mention, observationally, I do not think these units are really stuck constantly analyzing, but rather are retriggering and simply analyzing many, many triggers. So it’s like having a thousand small math problems to do instead of being stuck on one long math problem. Co- channel...
  16. Varminterror

    Precision Rifle Gear New Athlon Rangecraft Chronograph-Garmin Xero Killer?

    I might be picking nits here, but I don't really like "analyzing loop," to describe what we're seeing. Judd used the same language - "analyzing loop" - on the phone when I called after the first instance of interference on the first day with my Athlon, but I'm not terribly certain I'd agree with...
  17. Varminterror

    Precision Rifle Gear New Athlon Rangecraft Chronograph-Garmin Xero Killer?

    I use iOS. When opening the "manage tab" of each Athlon Velocity Pro in the app - on iOS - the units generally automatically sync sessions into the phone. When this doesn't happen automatically, typically there is a "sync sessions" button at the bottom of the app interface page. One of my...
  18. Varminterror

    Precision Rifle Gear New Athlon Rangecraft Chronograph-Garmin Xero Killer?

    Eh, folks wanna know stuff, and I like experimenting when I have time and ability. I kinda accidentally ended up with a bunch of chronos, 8 units of 7 different make/model, folks asked questions, so I designed some experiments for comparison - then the preliminary testing revealed additional...
  19. Varminterror

    Precision Rifle Gear New Athlon Rangecraft Chronograph-Garmin Xero Killer?

    After many failed attempts over multiple days and system resets, one of my Athlons will connect, but simply will NOT sync sessions to my phone. That's been kind of frustrating for me - especially when I'm trying to compile data from several chronographs at the same time and have to do manual...
  20. Varminterror

    Precision Rifle Gear New Athlon Rangecraft Chronograph-Garmin Xero Killer?

    I have on hand a CE ProChrono Digital, MagnetoSpeed V3, LabRadar V1, LabRadar LX, MacDonald TwoBox, Caldwell VelociRadar, Garmin Xero C1, and Athlon Velocity Pro (and will have 2 Athlons soon to be able to validate within the same brand, will borrow another Garmin, and possibly another LX). I'm...
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