Since you mention H4895 I assume you've already seen the HODGDON YOUTH LOADS. Speer list "some" reduced loads in 30-06 although, none for 125 grain bullets. Below is a few samples from my Speer manual:
110 grain bullets: XMP 5744 - 26.0 / 27.0 Grains (1956 / 2033 Muzzle FPS*)
130 grain...