You got a darn good deal! My little T/C book says for .45 Cherokee;
127gr.,.440 rb:
60 grs FFG --- 1701 F.P.S.,,816 Ft. Lbs. muzzle velocity (this they list as optimum)
90 grs FFG --- 1980 F.P.S.,,1106 Ft. Lb. Muzzel velocity (90 grns is listed as Max. with a "Do Not Exceed" in red)
Maxi-Ball/Maxi-Hunter:
They list 70 grns FFG as Optimum,,and 80grnsFFG as Maximum ("Do Not Exceed") for these projectiles as below,
190 to 200 gr. Bullet
70grns FFG 1575 F.P.S.,,1101 ft.lbs
80grns,,,,,,,1643 f.p.s.,,,1199 ft.lbs
240 to 255 grn Bullet
70grns FFG 1456 f.p.s.,,1201 ft.lbs
80grns,,,,,,,1541 f.p.s.,,1345 ft.lbs
320grn Bullet
70gr ffg 1334 fps,,1265 ft.lbs.
80gr ffg 1420 fps,,1433 ft.lbs.
Hope that helps,,I've always found the above info interesting and handy to have,,yet absolutley worthless in most BPML applications.
Just IMHO,,don't fall "sucker" to Max load syndrome. Max loads seldom develop the best accuracy, the 60-70 gr ffg load they list is MORE than enough for ANY Deer size game coast to coast. When it comes to the "hunt", it's all about placement,it's all about the confidence that comes with accuracy.
luck to ya,,,