RE: Sighting in at 300 yards ??
To CBM SC: You finally found out why they invent these new calibers. To generate revenue. A regular 30-06 or 308 Winchester would have done just fine. And you can buy ammo for 1/3 of the cost. You can even find hardball(sometimes) for less.
I totally concur with your scope choice. I have a couple of Swarovski's myself. I like the Tika, but I must admit I have very limited experience with them(over and under, rifle shotgun combo from almost 25 years ago). Good shooting and save that brass, Tom.