For proficiency at running targets, probably nothing beats running rabbits or driven hogs.
For charging targets, I think the ideas here are cool. What really counts is work on building muscle memory, loading drills, bolt cycling drills, etc. In a real charge (or shootout, or other emergency), your brain will likely go dumb and everything will revert to the most basal level of what you practiced. Many folks short-stroke the bolt, grab the wrong trigger, bumble the reload, forget where the safety is, etc, etc. Just remembering to reset the scope to its lowest power setting is enough to occupy my soul sometimes, and that’s without something nasty in view. Carefully watch video of a few “real-life” charge situations and it’s pretty clear that the actual abilities of many client-hunters is far below their perceived abilities.
I’ve done two stupid things that really bug me. The first is retrieving an empty after shooting a buffalo. That’s my basal level of entrenched habits, established from years of shooting and reloading. It’s on video and it drives me crazy. I should have been head-up, eyes open, and ready for anything. The second is short-stroking a borrowed .375 while kudu hunting. I figured it out, but the kudu was going away, not inbound.