eljefedouble
When loading with trailboss, my .404 averages 1380fps with 28gn for a full case & a 400+gn cast, so the 350gn should get well over the 1400fps - not sure if this load will be fast enough for you?
As a rule I don't lube my PP rounds in my .500, these are doing about 1580fps with duplex BP loads.
I don't get leading & the paper appears cut cleanly into ribbons.
Daryl, please correct me if I'm wrong, but do you really need lube on PP's especially if using BP?
regards
93x64mm