The Hornet can indeed be a finicky little devil. What my rifle likes another might not. But I've seen some good tips here. LiLGun has become my favorite Hornet powder. Did a lot of good things with H-110, and it may work out good in your rifle, but my gun prefers LiLGun so thats what it gets. Played with pistol primers but settled on small rifle primers. Never tried AA1680 but I've heard good things about it. Bullets are anyone's guess; see what works in yours. The Lee Factory Crimp die gets used ALWAYS to insure a uniform grip on those thin neck walls, which are N.S.O.'d and the case mouth chamfered to help ease the bullet in, (haven't crumpled a case neck yet, maybe 'cause I was warned about it when I started reloading Hornets).