I don't have any experience with the listed cartridges, but I think the earlier post regarding cartridge interchangeability bears revisiting.
If you're going to have to tailor a load for each rifle, you may very well not get much efficiency out of identical chamberings. You may discover you need to stock two different bullets, separate your brass, and possibly even use two different powders (the target rifle may have stringent requirements, yes?).
I went through the same thing with my .38's/.357. I've currently got 3 kinds of bullets, 3 powders, two types of brass, and two sets of dies. I CAN press many combinations into different service, which is nice but with cast bullets you have to match pressure to hardness which limits their versatility btw .38 and .357 except in a pinch. Jacketed is more forgiving, but also more expensive blah blah.
So beware that you may end up in the same situation and frustrated that you didn't achieve the simplicity that I think you desire (seems to be a theme in your threads). It might be more satisfying to have one chambering each, tailored for the purpose, and develop the perfect load for each. Stock 1 powder and bullet for each and be done. You might even get away with the same powder for both!
-Daizee