As far as the first two, I think you're doing fine, use the BT in the .25-06, as long as it's the 115 gr., they 100 gr. might be a little light, but I don't own a .25 cal, so you know more than I do in that situation. With the .300 Wby., definitely go with the Partition, or consider the new Nosler Accubond. I haven't used the Accubond, but it's a bonded-core ballistic tip and the only weight available in .30 this year is 200gr, which might be perfect for your moose hunt, but if you want absolute insurance on a bullet not failing you, use the 180 or 200 gr. Partition for the moose, that's probably what I would do. T
he .243...what a hotly disputed topic for deer hunting. Personally, I love shooting deer with the .243, it's what I took my first big-game animals with, a mule deer 4x5, and whitetail doe and a 14 1/2" antelope in the same year, a total of 4 shots, I missed the first one at the mulie. The main reason I load Partitions in the .243 is that it is a small deer bullet, but in the 100 gr. weight it has pretty good sectional density. When my dad first started loading for it back in the 70's, you had a few choices for bullets, FMJ, varmint bullets, 100 gr. light-jacketed bullets, and the Nosler Partition. He didn't buy the gun to shoot varmints, he bought it for my mother to take deer and antelop with and not be scared of recoil. We've always used the Partition bullet for any hunting purposes, we load for a friend who insists that we load him "those purple-tipped bullets" He has taken several whitetails with the 95 gr. BT and they haven't failed, but here's why I say the Partition in the .243. It leaves room for error. I have never seen a deer shot with a partition out to 300 yds that we haven't had a complete pass through and good wound channel on. The most impressive demonstration of this was 3 years ago when my idiot brother went for a neck shot on a mulie doe at about 100 yds and missed the spine, but you could see the wound with the naked eye. She took off running straight away from us, I centered her tail with my crosshairs on a rest and pulled the trigger, she piled up in a heap. My shot entered the bunghold, and went through the pelvis, the top of the stomach, part of the spine, took out one lung and exited the brisket. This doe weighed 223 lbs. dressed, that's a big critter for a lengthwise penetration. If you want a bullet that will never fail in the .243, use a Nosler Partition. The other nice thing that we have found is that we can take much less expensive Speer 100 gr. bullets, put them on top of the same powder charge, shoot three rounds of Speer and three rounds of Partition and they still keep the group under 1" most days, 1 1/2" every day, the Speers are good, cheap target ammo, then switch to the Partitions for hunting. I hope this explains my point of view, it was long, but hopefully worth it. If you have any more question, ask away. BTW, if you haven't figured it out yet, I'd rather shoot a Nosler than anything else!
Selmer