Thanks Doug!
I just got off the phone with Rich at Sierra Bullets. Very helpful guy! Not only did he give me the contact info of a reloader friend of his that lives about 10 miles away from me, he spent about 20 minutes on the phone answering all my questions. Here's the data he gave me:
180gr LFP, .401 diameter - 950 - 1000 FPS
Unique - 5.9gr
Bullseye - 5.0gr
Univ Clays - 5.5gr
Titegroup - 5.3gr
WST - 4.8gr
As soon as I get my hands on a chrono, I'll let you guys know how these loads come out.