.458 250 grain monoflex

That looks like a great bullet for deer, fired from either a muzzle loader or the 45-70. 4 jugs is really good penetration for deer too.

I'm using 72 grs. of RL7. BCR sabot. Shoots sub inch. Glad i have a brake.....lol
Interesting contrast with this 220 grain Nosler Partition launched at 2380 fps 10 years ago.

7 jugs, and good expansion, though admittedly not as much as the .45 caliber bullet. I only thought of this because of the similarities of bullet weight and velocity.

Regards, Guy