Just make sure you get the .452 sabot. They make both a .452 and a .458. that weight should be about perfect. You can easily duplicate a 45-70 load with that bullet. I would shoot for about 1600 fps for good flight characteristics as well as good down range(300 yard) ooommmppphhh.

How did you choose your design?? And it looks like a boat tail design?? Why?? Certainly that is not for a GC??

Lots of interest here in that bullet. I also have a long range hunter.

I am also thinking about having a mold made. But I am wanting to make the bullet as a conical and go for the full 50 caliber diameter. And I will be aiming for a weight of about 400-410 grains. The one I shoot now weighs 525 grains. I am thinking about going with 4 grooves to lower the weight.

Your LRH should handle that very well. Tom.