I use 6.7gn of W540 in a .40 CZ-75 military, WW brass and SP primer -slight taper-crimp only, with no real leading with linotype lead 150 SWC drylube by "Redback".
Suggest 900FPS -but not chronoed yet with F1 Chrony.
Nice load to shoot,action is fine with no malfunctions, slight streaking 1/4" from muzzle in lands [only] after 200 rds on a 30C day at range.
Shoots 3" group of 5 shots -handheld, offhand - at 15M target easily.Trigger guard serrated grip used. Hope that helps
BB