I need start/max loads & speeds for the 458wm useing SR-4759 Powder
I will be loading 300,350,500gr.Hornady's
Does anyone know where to find this powder/cartridge info for these bullet weights?
Thanks for any help

From the Hornady book;
300gr Hornady HP; SR 4759
Start load, 33.9gr, vel. 1950fps.
Max load 43.9gr, vel 2100fps.

From the Speer book;
400gr Speer SP, SR4759
Start 26gr, 1262 fps.
Max 30gr, 1445fps.

Hope this helps.

Thanks NE 450 that 300gr.load is a zingger dingger
That should bounce off a buck real good

Max was listed as 44.5 grains according to the old IMR brown sheet load info pamphlet... for an MV of 1650..

so there is your max...

anything below that, you are in the safe zone..