Unfortunately, the old Hudson bullets are obsolete unless one has the molds***. Loading data from the 1958 Lyman Handbook:
319273 (tapered) 10.5gr Alliant 2400
319289 (straight side) 12.8gr Alliant 2400
*** - Unless someone can find Bob @ unobtainomite.com and he goes back casting old bullets
Have shoot the Hudson bullets with accuracy:
319273: 13.6gr IMR 4759 ... if shot as fixed cartridge, seat the bullet to the bottom of the last GG band with a light crimp. My definition of 'light' is it takes 2-3 whacks with a kinetic puller to dislodge the bullet
319289: 13.6gr IMR 4749
(Both bullets are a nominal 184gr with 1:30 alloy. Seat both rounds with the bullet nose touching the leade. Exception is if the 319273 is breech seated)
As for other loads with current production bullets :
* NEI 86A 318-175gr: 11gr IMR 4227 ... very good groups @ 200yds
* Rifle groove dependent - the BACO 316180 or BACO 320180: 13.5gr Alliant 300-MP, average velocity 1240 fps. For better 200yd accuracy, increase charge to 14grs
* I too finger seat these bullets