I've been playing with this product. If you load target ammo in magnum cases like I do, I would go to faster powders. It meters like water but doesn't seem to enjoy barely filling large case volumes. If you go for 44spl in 44rm brass, stay to warmer side of 44 spl or light side of 44 mag.

I guess what Im saying here is that this powder needs a bit of pressure to burn well.