Blacktail, Here is published data, January 06 Guns and Ammo by Bob Forker.
Speer 90gr HP TNT, Ram Shot Tac, Rem 9.5, 35grains@ 2,500fps
Hornady 100gr SP, Hod. H4895, Win LR, 36grains @ 2,400 fps.
The author notes he puts a little Dacron pillow stuffing on the powder charge to keep it in the back of the case.
I have read that reducing some powder loads below minimum starting charge can be dangerous. The same article stated that Hodgdon H4895 was a safe powder to reduce below minimum listed charge wieghts.
I have made reduced loads with a few different cartriges by simply using 2/3 of the published data for H4895. I have never used a filler in the case and accuracy was usually 1-2" @ 100 yards. Keep the bullets off the lands with reduced loads. Primmers show no flattening .
Attempt at your own risk.