X2 on getting a rangefinder to determine distance. If you’re shooting far enough to really need rangefinding equipment, you’re better off using a laser to get the exact range. Very few people still use a reticle to range, as it’s not as accurate. Unless you have a known measurement on your object, a reticle-determined range will always be inexact.
Additionally, just one last plug for SFP. If you need the fancy reticle on your scope, you’ll be far enough that you’ll want it dialed all the way up, and your reticle will be accurate.
That way your reticle stays the same size, and is never too big or too small.
With a correctly designed reticle from a reputable company, the reticle is never too small nor too big at any magnification with a FFP scope.