As others have stated, it's all about finding what the gun likes. Thats part of the fun of owning a ML.
Don't limit yourself, or the ML, to just pellets and a couple bullet choices. Of the three MLs I have, one of them being a Traditions Pursuit Ultralight, none did near as well with pellets vs loose powder.
IMO, pellets are a PITA. They required swabbing after every shot to achieve moderate accuracy, and max loads were all over the place.
I'm not pushing BH 209, but that stuff is the cats meow when it comes to running bullets down range. No swabbing between shots, just load and shoot. Clean the breech plug every 7-8 shots, mainly to get out the carbon build up from the primers. Get the proper size drill bit and it takes just seconds to do.
The only down side to BH 209, if you want to call it that, is a solvent must be used for cleaning. Beings you have a 30-06, you probably have some solvent like Hoppes #9 or equivalent.
My Pursuit Ultralights most accurate load has been 105 grains(volume) BH 209, 260 gr Harvester PT Golds and CCI 209M primer. It shoots a honest 1" - 1 1/4" groups @ 100 yds and <3" groups @ 200 yds all day long. It's also bad medicine on deer. Boom,,, flop.
On the scope, don't go by what the BDC "says" its supposed to be. Shot it at those distances to verify. My guess is you're going to be surprised at where the actual points of impact are vs what the BDC claims, especially on the 200 and 225 yd reticles.