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  1. K

    Winds off?

    https://www.hornady.com/support/ballistic-coefficient
  2. K

    Winds off?

    He asked about truing the BC example: Actual target facing 270 W (Settings turned on) 1000 yd 7.4 mils@ az:270 W rem v=1669 tof = 1.370 BC= G1 .563 (Settings turned off to match shooters’ 12:00 Orientation to same target) 1000 yd 7.4 mils@ az:0 N rem v=1636 tof = 1.384 BC= G1 .545
  3. K

    Winds off?

    Azimuth is the compass bearing to the target. It tells the solver where the Target is in relation to true north so that it can account for Coriolis on east/west bearing Latitude is what accounts for the horizontal component of coriolis. The default state of the solver assumes that the zero...
  4. K

    Winds off?

    Did you zero the gun in a crosswind? Are zeroing your group at 100 yards left of center to account for spin drift? Or are you centering your group on target? Did you record the azimuth/latitude to target? Rule those out first before you make adjustments to MV or BC
  5. K

    Desert Tech TRASOL Official Thread

    The H.U.D in Trasol would be an example of a “Feature”. The “Easy” mode in the Kestrel would be an example of a “Feature”. Coriolis/SD/CWAJ/wind-deflection are secondary effects. Gravity being the primary. Gravity is the solvers' "baseline zero reference" If your solver of choice supports...
  6. K

    Desert Tech TRASOL Official Thread

    “wrong” and “unnecessary” are “relative” to individual “criteria” My “criteria” or “benchmark” is the Kestrel (or any solver for that matter) maintain it’s “proactive” solution. Because the Kestrel is a “Field” instrument. Meaning it’s has the capability of reading and adjusting the “solution”...
  7. K

    Desert Tech TRASOL Official Thread

    Skookum touched on this briefly Keep in Mind that this is not a true apples-to-apples comparison 4DOF - uses a CDM and requires you find the true range zero or zero angle at 100 yards AB for IOS and Kestrel will proactively adjust the elevation to account for CWAJ when applying wind to the...
  8. K

    Winds off?

    Gotcha. Thanks for taking the time.
  9. K

    Winds off?

    Does that mean you didn't record the numbers for the wind? I'm just seeking clarification as I don't have a military background. "I doped it" is what has me confused as I thought one would record both elevation and wind for the data book. Thanks
  10. K

    Winds off?

    My apologies. Here's the link I'm talking about. You focused on the elevation numbers but didn't really mention much as far as what the wind corrections were I was curious to see how far it's off from the solver
  11. K

    Winds off?

    Thank You Frank. Out of curiosity were you seeing the “Wind Descrepency” for lack of a better term in the Spartan 260 Project lesson you made? Do you have the wind values for that project? Thanks again I’m enjoying the podcasts.
  12. K

    Winds off?

    Is there full data for the Short Tikka LH gain twist project posted anywhere? It would be helpful to have to follow along in Cold Bore with what's being referenced in the podcast.
  13. K

    Kestral 5700 Elite - Cal MV and Cal DSF

    Any preferences or trade offs between 7 vs 8?
  14. K

    Kestral 5700 Elite - Cal MV and Cal DSF

    I agree The AR-10 is most likely off because the 168 SMK has a reputation for not doing well in trans. The table going from left to right is the recorded MV for the shot in the series. And the BC would be for that shot to = the “predicted POI” in mils The Last row is the totaled average of...
  15. K

    Applied Ballistics: G7 BC Vs Custom Drag Model

    Thanks for keeping on top of it Doc.
  16. K

    Applied Ballistics: G7 BC Vs Custom Drag Model

    It looks like you have a discrepancy between the G7 BC in the AB Connect library and the Data published in "Ballistic Performance of Rifle Bullets" (3rd Edition) The G7 average across the entire velocity range is .247 and .243 (2000 - 1500) .244 (1500 - below)
  17. K

    Kestral 5700 Elite - Cal MV and Cal DSF

    Glad to read you had success. The MV variation can be managed using the MV-Temp tables in the Kestrel. The AR-10 at 1030 could also be where your ammo is starting to fall outside of the extreme spread. I started logging what the predictions for a 10-shot series equals in order to see where...
  18. K

    Winds off?

    Could someone help describe for me this “Winds aren’t matching the solver” issue that pops up in the podcasts now and then. It seems to me to be counter-productive to be using a quick wind formula if it’s “off by half”. Is it an intermittent problem? Are they separate issues? I'm trying to...
  19. K

    Kestral 5700 Elite - Cal MV and Cal DSF

    Gotcha. I was wondering how you were going to get an accurate Center of Group measurement to true off of because that's what you would use to compare the prediction between the CDM/G7/G1. Check your azimuth of fire to the target with the compass app on your phone or an analog compass to sanity...
  20. K

    Kestral 5700 Elite - Cal MV and Cal DSF

    So long as you are within 10% of the recommended truing range you Should be good but don’t go beyond 20% Are you shooting steel or paper?
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