Yesterday my son and I both completed the Airgun Depot Long Ranger 150 and 200 yard challenge!
With the data Gregor provided about the Huben/bullet setup in his video, (thank you Gregor!) I input everything in Chairgun and after the near zeroing of the airgun the holdover worked exactly as calculated! Huben K1 with Huben bulets and the scope used is an MTC 3-12x24 Viper Connect SL.
As targetsetup we used a piece of woodboard with a DIY black shoot'n'see backstop to see our POIs and used a golftee where we put our homemade powder filled "golfballs" on. (we made them of tabletennis balls filled with talcpowder)
150 yards took me just 4 shots and my son 7. During the whole time (around midday) the wind was blowing pretty hard from the left rear quarter during our shooting. But we had to do it on this day, as the forecast for the next and the day after that called for both wind and rain, and the challenge was closing in 2 days.
After we set everything up for 200 yards the wind increased even more in strength so we decided to shoot only one magazine each, as we thought the conditions were gettting too unfavourable. And they were...
But I still managed to graze the ball with a clear mark on the top edge of it but it's integrity was not broken and later during my 19 shots of the magazine I shot the ball down off it's peg, as I hit the golftee the ball was resting on, but no succesfull hit on the ball itself.
After the shots we called it a day and it started raining as well
Then at the end of the afternoon the weather improved again and the wind almost died down, so we gave it another go:
200 yards took me only 3 shots (1 flyer not counted as it was a damaged bullet (it made a fireworks ziiinggg sound when I shot it) and the 200 yards took my son just 2 shots!
Noteworthy is that although I have had some long range firearms experience during my airforce time, (being well over 20 years ago), both my son and my "long range" airgun experience before the challenge consisted of no further out than 44 yards, as that is the max range I can shoot in my garden... So I'd say we did pretty good, but the greatest contribution to that is of course the great airgun equipment that can be had nowadays, and the Huben surely shines in that department!
All in all we had a ball, now my son is editing the videos to submit our entries, so we can collect our trophies!