I have several rifles that will shoot .5 - .75" 100 yard groups and have held zero for years. None of them wear SWFA or NightForce scopes. A couple even wear Leupolds. None of them go horseback but some do frequently ride in the rack on my ATV.
If they do what you want, then carry on! Leupolds of yesteryear held zero better than recent offerings, IME.