Re: SS 10x42 HD for trainer?
Well, if the target is scaled for such range (so that would mean 4 times smaller in every dimension for 200 vs 800), it would appear the same size regardless of scope power.
If using the same target size, you would need 4x less power in your scope to see the same. I do feel that using scaled targets is more realistic though.
So just use the same power as the longer range guns, but use scaled targets.