As Ed McMahon, would say, "You are correct sir". It is service pressure, not proofed pressure. A fatal error on my part! Especially if you loaded to proof pressure! One thing I do with my hunting loads, I measure each powder drop to make sure the loads are consistent. I use 800-X, which I personally like a lot, no real powder migration, performs well in cold weather etc. But, it's a large flake powder and meters like crap. So, I just weigh each drop, peace of mind and I know I won't go above the published pressure.

Best,

Greg

Gregory J. Westberg
MSG, USA
Ret