andrewjoseph
In my Omega's I am able to load MMP HPH-24 and regular Harvester Sabots, eithshort or long petal but I do prefer the short petal. Not Omega's able to load 24 or regular Harvesters the bore is to tight. In that case you will want to get MMP HPH-3p-EZ or Harvester Crush rib sabots. They are thinner and will go down the barrel.
I do shoot Nosler Partitions, they are expensive but they have some very good assets for a hunting bullets. I shoot the .451/260 grain partition it is devastating on deer- easily shot to 175 yards. The bullet is accurate. With the diameter of the Nosler being .451 it is a little thinner and would help getting the load down the barrel. The Nosler is tank tough...
The second alternative, for a less expensive bullet, that I would recommned is the Speer Gold Dot.These bullets are bonded the lead can not separate from the copper. They have controlled expansion down to the dot in the internals of the bullet.Again, I would go with a .452 vs the any 44cal. The 45 cal bullets are closer to bore and are more predictable than the 44's.It really does not matter which .452 Gold Dot you use - either the 250 or the 300. The 300 does havea great BC for a 45cal bullet (.232).
Ihave shot a lot of HornadyXTP's in fact they were my first ML bullets, but I have found shooting them at the higher velocities I prefer I can often strip the lead out of the copper. You will find the copper inside the hide and the lead in another place - if it stays together. Now I also should say that XTP's have shot more deer thanany other bullet, but they will not for me.