I was really surprised how hard the 75 AMAX smacked steel the first time I shot at ~1000 yards with a 22" .223. I was shooting a 22" 7mm-08 with 162 AMAX at the time and the difference was much less than I expected.

I'm like Higgi and make sure that I position targets carefully, regardless of cartridges being fired in order to get as much feedback as possible.