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  1. 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...
  2. 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...
  3. 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...
  4. 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...
  5. 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...
  6. 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...
  7. 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...
  8. 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...
  9. 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...
  10. 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...
  11. Varminterror

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

    The Garmin & LabRadar readings were within the noise - that speed was trued on those loads many times before and validated as far as 4k. Using the Athlon speed in the ballistic engine with bullets actually flying at the Garmin/LabRadar speeds would have put shots below the bottom of the plate at...
  12. Varminterror

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

    My Athlon Velocity Pro arrived on Friday and I had opportunity to take it out to an ELR class Manners hosted. I took my LabRadar LX (which I haven't used much since Oct when I got it), and my Garmin, which I've used a bunch for the last year and a half as my primary chrono. Athlon had put...
  13. Varminterror

    New rifle build

    Why change to a new action?
  14. Varminterror

    Noob question LR vs ELR rifle

    The NF ELR match is a unique bird, but even there, the 6.5 creed is grossly outclassed. At conventional ELR matches, the 6.5 creed isn’t even remotely a factor. We shot Spearpoint yesterday in 24-26mph winds out to 2911, and the big rounds we’re shooting eat 100grn more powder and hold above...
  15. Varminterror

    ELR with a 375 H&H

    Yeah, I haven’t met a 375 H&H which didn’t kick the shit out of the shooter too… always light, Sporter rifles compared to an ELR rifle. My 10 year old has shot my 375 Cheytac - but it weighs 39.8lbs. Way, way more horsepower than the H&H case, but the brake and the weight take it down. I’d find...
  16. Varminterror

    ELR with a 375 H&H

    I'm only half way there, but I'm sure at 80yrs old, I'd much rather carry a 25lb rifle with moderate recoil than get the shit beat out of me by a 9lb 338LM!!!
  17. Varminterror

    ELR with a 375 H&H

    (Setting aside issues for throat and seating depth, cartridge length, etc for a moment...). I'm not certain you're realizing the scale of some of these cartridges, even the 338LM is considerably more powerful than the 375 H&H case. The 375 H&H has 95grn case capacity, and it's going to eat...
  18. Varminterror

    243 winchester

    How old is old? You've mentioned rifle weight as well as recoil, so I'm not sure what your limitation in ability might be. I know some "old" guys who shoot PRS and ELR matches, so I know "old" isn't a terribly descriptive term - but it's a very different game if you're not able to lift and move...
  19. Varminterror

    243 winchester

    However you choose to spend your money is your business, but you asked the question whether a 243win would survive for ELR competition as far as 2,000 yards - the answer might not be what you wanted to hear, but as you said, "it is what it is." If you want a 243win, out of subjective whimsy...
  20. Varminterror

    243 winchester

    243win, even pushing hard, will be sub-sonic around 1500, and holding on for another 500yrds just doesn't play out so hot for the little 6mm's. It's one of those "yeah, I hit 2,000yrds with my 243win.... those few times out of a bunch of shots... when the wind was down.... and the mirage was...
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