75 amax will not be your best friend in this endeavor. At least not in a standard 223.
Beware loose tips or missing tips.
And they have had bad lot numbers of them from years ago. I had more than 5000 replaced once, that were not pointed up sufficiently and the accuracy was not there with that batch.
I like the amax for the short range stuff though, from 200 to 600 yards they do well enough, not the best, but well enough.
