Hi Folks,
I could use your help, this is the first time I have been challenged at getting my data to line up with verified DOPE. The kestrel 5700 elite with custom curve on Hornady ELDM 140g on 2 rifles has always been spot on out to 1K for me, and always lined up almost perfectly with Hornady 4dof, Streelock Pro, and Ballistic ARC.
This is where I have a challenge, my new rifle, started speeding up as expected after a couple hundred rounds, I observed this in a match and couple of recreational shoots. I decided to do a clean, fouling(MV measurements with MS since I have it , verify zero. Then this weekend verify all dope from 100-900 yards.
I have used the process:
1) solid zero on a measured LRF verified distance 103Y
2) validated DOPE on LRF verified distances of 3+ shot groups on fresh painted steel with water mark and a spotter.
3) Adjusting MV in the tools @`600 yards, then adjusting BC @~800yards if needed.
At the range I used the Kestrel for the try dope(column B), wrote it down, adjusted and wrote down the TRUE DOPE (column C). I did this for all LRF verified ranges, shooting from 200 yards out to 900 yards on steel that was freshly painted and had a water mark. I worked with a spotter and we spotted and verified each others shots on each target, most ranges we each had our own targets, but on the larger gongs we were able to differentiate very easily. I added a drone picture of the 900 yard target.
Then at home using various apps used the 598 yard target to true up the MV, and this worked well for Ballistic ARC, Strelok Pro, and Hornady 4DOF (column D). I captured all of the environmental data from the session as captured by the kestrel and written down, and locked the Kestrel.
The new MV for all of these to line up was 2790 and no BC correction. I expected as I have before to go into the Kestrel adjust the MV to 2790 and it would line up as well. This is not what happened and the data was significantly off from 500 yards and out, and I could not get the custom curve to line up at all (column E&F). I created another profile with the G7 BC and captured the results (column I) it was off as well but with MV and BC was able to get it close. As I was finishing this Kestrel pushed the 1.36 update and it moved the numbers as well. captured below.
The result is I had to move AWAY from the AB custom curve to get any data to line up. I tried the DSF but it had no impact as I believe 600-900 yards is too close for this to have an effect. This is the hardest I have had to work to get my Kestrel to line up with verified dope. Are others seeing any anomalies with Hornady ELDM in the AB SW not lining up?
An interesting side note, I also re-verified the Prime 130g USA (new ammo), and the profile I had was still spot on at all these ranges. same environmental data. Verified the Prime after the Hornady at each range.
sorry for the book, but tried to provide as much data and background on the process I used. End of the day I have my dope, and will print out new wrist coach cards and DA charts, but a little bummed on the Kestrel.
I could use your help, this is the first time I have been challenged at getting my data to line up with verified DOPE. The kestrel 5700 elite with custom curve on Hornady ELDM 140g on 2 rifles has always been spot on out to 1K for me, and always lined up almost perfectly with Hornady 4dof, Streelock Pro, and Ballistic ARC.
This is where I have a challenge, my new rifle, started speeding up as expected after a couple hundred rounds, I observed this in a match and couple of recreational shoots. I decided to do a clean, fouling(MV measurements with MS since I have it , verify zero. Then this weekend verify all dope from 100-900 yards.
I have used the process:
1) solid zero on a measured LRF verified distance 103Y
2) validated DOPE on LRF verified distances of 3+ shot groups on fresh painted steel with water mark and a spotter.
3) Adjusting MV in the tools @`600 yards, then adjusting BC @~800yards if needed.
At the range I used the Kestrel for the try dope(column B), wrote it down, adjusted and wrote down the TRUE DOPE (column C). I did this for all LRF verified ranges, shooting from 200 yards out to 900 yards on steel that was freshly painted and had a water mark. I worked with a spotter and we spotted and verified each others shots on each target, most ranges we each had our own targets, but on the larger gongs we were able to differentiate very easily. I added a drone picture of the 900 yard target.
Then at home using various apps used the 598 yard target to true up the MV, and this worked well for Ballistic ARC, Strelok Pro, and Hornady 4DOF (column D). I captured all of the environmental data from the session as captured by the kestrel and written down, and locked the Kestrel.
1/19/2020 Avenal Gun Club, 9AM, MPA 6.5CM, Defiant Deviant, Bartlein M24 Scope over bore 2.3", Zero verified range 103y, no offsets 41 degrees, 29.27 inHg, 90% RH, -350 DA, 37 LAT All targets Zero angle, zero DOF, no wind entered, no wind on range Hornady ELDM 140g |
The result is I had to move AWAY from the AB custom curve to get any data to line up. I tried the DSF but it had no impact as I believe 600-900 yards is too close for this to have an effect. This is the hardest I have had to work to get my Kestrel to line up with verified dope. Are others seeing any anomalies with Hornady ELDM in the AB SW not lining up?
An interesting side note, I also re-verified the Prime 130g USA (new ammo), and the profile I had was still spot on at all these ranges. same environmental data. Verified the Prime after the Hornady at each range.
sorry for the book, but tried to provide as much data and background on the process I used. End of the day I have my dope, and will print out new wrist coach cards and DA charts, but a little bummed on the Kestrel.