I really like the .458 Win. Mag. and have had a couple. I still have a fine Winchester M70 Classic Safari.

I've shown these before, but here are a couple of targets I shot in the summer of 2018 in preparation for my trip to Australia (NT buff hunt). My loading data and chronograph readout are included.

The first target was shot with a Lyman 4x scope mounted:

The second target was shot with the scope removed, using the factory express sights:

Standard precautions apply to the use of any of my data. This load is safe in my rifle. It might not be safe in yours.

You will notice that the chronograph readout on the second target involved shots 16-20 of a string. Average velocity (M) was 2073 fps. Of the 20 round string, the highest velocity was 2084 fps; the lowest was 2056 fps, for a total spread (T) of 28 fps and standard deviation ($) of 7. That is good ballistics, and you see the accuracy is excellent.

I would trust this rifle and load against the meanest, hungriest, and maddest of beasts.

Curl