Good info so far, thank you. We're going to the range tomorrow afternoon (wonder if they have a crono) to test a few "work in progress" batches along with the Remington ammo. I want my Dad to feel what I feel when that round fires. Moderate recoil with an interesting rearward punch. It feels very different than any .45 factory ammo I've used, and I like it. Thanks for the powder\charge info, I'll research them this weekend.