Blackhorn is a great powder without question. My concern is the price of course, but also the availability. I have to order it. While I would love to shoot it in my inlines, I just can not justify the cost.
Also a lot of my in lines are not made for Blackhorn 209. I learned this the hard way. I will stick with powder I can purchase locally and use in ALL my rifles for now. I just got a deal on some Triple Seven and Pyrodex RS. The local Wal Mart did not sell all their stock and had several cans on the shelf at a very reduced price. So of course it came home with me.