Interesting post, Ricky, and nice shooting.

As per post #2, I wish I had that sort of time (and range to practice).

Your observations on retained energy / penetration are very interesting, too. When we attend the Boinger Bash events, at the end of the Sunday we have a walk down to the bottom of the field and have a look at the targets - the furthest are 75 yards. And the pellets are well flattened and mangled! So, as you say, they're still carrying energy at that range and beyond.