I've had great results from R17 with several rounds also. I have to seat my bullets pretty deep in this new Creedmoor, so I can get enough R26 etc in it to mess with. Now I'm playing with this StaBall/110 HH combo. If I can pick the right primer for my cases...Fed215 is almost "too big" in Nosler cases and Win LRMs are same in Hornady cases....I'm going back to BR2s....sheesh.