Sounds great...be careful with I think it was TiteGroup...several of guys over on the S&W forums have reported blowups when shooting with Magnum handguns. Great for small capacity cases but iffy with Magnums... In cases with lots of airspace they are thinking it could "flashover".
6.0 should be a low velocity target load...less than 8.0 grains of Unique...
I am out of state for a while and will post some loads when I get back home.
Bob
