Relationship between TCRM and hitrate

I would vote for the targets to fire a 1 power bullet each time you fire. Then it would be more sensitive to small changes even at higher levels.

I am not sure about that. You get a bit more difference in bulletscore, but less difference in survival, at least against the good movers (which are the most interesting)

Well it will affect both. Basically then we actually have a direct measure of the hitrate, and not just a measure of the amount by which we run out of energy.

The score wouldn't go to 100 anymore though so we would have to scale it.

That makes sense.

We could calculate the scores by our bullet damage / a constant, or by our bullet damage / the total score

I think this is better than a non-firing target, as hit-rate is not the only thing that affects score.

If you choose to fire only when a guaranteed hit is possible, hit-rate will be 100%, however you merely earn score this way.

Then a target that losses energy which is the score you can earn potentially could better simulate real world situations