I am finally trying to get my GA Precision Crusader in 6.5 PRC up and running. After months and months of searching the only powder I found which is suitable is IMR 7977. I have 8 pounds of the stuff and nothing else is available. This shortage is insane! Anyone using this powder with 140 to 143 grain bullets. Bullets are even seriously hard to find. I have 143 ELD-X and 140 Accubonds. I might be receiving some 147 ELD-M relatively soon. The only powder I will have for quite some time is IMR 7977. Thanks.