Panman,
I got a 1/2" grouper load using Hornady 40 v-max's and Benchmark. CCI450 primers, Winchester cases. I ended up using the max load listed on the Hodgdon web site. I think it's on the powder bottle, too. They list 27.3 grs. for Nosler 40 gr. BT's so as always, be careful and work up, especially when not using the exact same bullet, etc. Still working on my own 60 grain loads, I'll get back after I get something worked up.
Tom