I have commissioned a bullet mold for my late (post 1915) model 7.5x55 Swiss Hammerelli-Martini from AccurateMolds.com (their number 31-200f, nominally a 200 gr bullet) and hope to have in in had in a relatively short time.
  The late model  rifle is perfectly adequate for modern high velocity jacketed bullet factory ammo in this cartridge.  It is the same action that was used by Springfield for Intl. Free Rifles they built in the .30-06 for the US team in the pre-ww2 era

Until I can come up with a breech seater for the Martini action I'll probably be shooting fixed ammo seated as far out as possible for starters.  This will basically be an offhand rifle so fixed ammo may be perfectly adequate  (considering my skill level at least)

I am interested is starting load suggestions,  I have a quantity of DuPont SR 4759 that I hope will work well.

Thanks for the starting point.  that helps a lot.  I appreciate it.  take a look at Accurate's 311200f Its a new one on his list. I just had him do that  for me and its now in his list.  Its based on the CBA designed Nightowl k31 bullet---minus the gascheck and plus a second lube groove.  same boreriding nose (with a meplat) and the tapered section back to the body.   I'll be casting some up tonight might get a chance to try them, shooting fixed, no martini breechseated yet.