Thanks for the information. I am really excited about these bullets.
You will be happy to know that I will be testing bc in the same manner as you are except for my second chrono will be at 100 yards because the screen window is not big enough to safely get a bullet through at 200 yards. I feel velocity loss is absolutely the best way to determine bc and praise you guys for doing it this way. It is truly the most accurate way of measuring and that is why all the bullet companies do the same!
And it is great to hear that you suppose a 4 week delivery or less. As you may have read, I have tested a great deal of bullets through my ABS 338 thunder mag and as such, have burned up a lot of useful hunting life. I have found a load for 4 different bullets now and the Hensons will be the fifth. So obviously, I will be risking getting closer to the end of the life of my barrel testing these bullets so I was curious as to the future availability of them because I don't want to waste barrel life on something that is no longer around. But it sounds as if these will be around and I will be able to get them quickly when I do need them. Thanks.
If it's not far, it's boring.