Hello
I was looking for some low recoil loads for a 458 winmag xp100.
Thank you
Justin

Try 36-38 grns. of AA5744 with a 405 grn. cast bullet. No filler is needed, but Mag. primers help with consistency.

Try Ken Water's Pet Loads (Complete Volume)
Pgs. 498-499
If you are shooting "lead" you might try the data for 45-70 from LYMAN

Good Luck to you.
Happy Easter