I have used/tried several powders in my 2 25-06's.
IMR4831 52.5 gr pushing a Speer 120 BTSP
RL19 - 52 gr pushing the Nos. 110 AB
H4831 - don't have my book at hand but used this to push the 110 AB's
IMR4350 - older load, pushing a 100 gr Speer BT
RL-26 - don't have this load handy - pushing a 117 SGK but only around 2650 in the one rifle I tried it in.
RL25 (got too hot too quick in my rifles)
I've got some RL 23 I'd like to try if I could ever find a starting/stopping load somewhere.
Pay it forward - Kids are the future.
Rifles are similar to boats and young women...there's no end to how much money you can pour into them without making them any more useful.