Mistakes aren’t actually “amplified” at further distances.
The mistake is the mistake is the mistake. Regardless of distance. The only reason it seems to amplify at distance is that it was already on a trajectory to miss at a certain distance (moving at an angle away from intended center I’d target). The distance just gives the angle the time it needs to move away from said center and miss.
While magnification won’t really change mich, the size of the target will. You need to find a size at 100yds in which breaking good shots results in a hit and breaking bad shots results in a miss.
The target size will vary depending on prone vs positional.
If 100 is all I had, I would figure out what the shooter/gun is capable of when performing good fundamentals from prone or bench. I would then double that and use that as my positional practice.
If the shooter and rifle is capable of .5moa, I would in turn use a 1moa target as my positional.
Also, test this out vs your wobble zone. If your wobble is more than the 1moa, increase the size of your target so that with your current skills, a clean shot is an impact and a bad shot is a miss.
As your skill increases, decrease the size of the target. Once you are at a target size that is at the shooter/rifle max capability, then you stop decreasing and you’re in “maintenance” practice mode.
Set up some targets spaced out to where you need to use the power you would likely find yourself using in a match.
I won’t tell you what that power is, as we are all different. I know many very good shooters that hover around 15x and I know many very good shooters who stay at max power most of a match.
