Not many companies make a low power scope with a huge objective which is what you need to gather more light. Few states allow you to hunt before sunrise or after sunset in the USA. Most low power scopes are used on shotguns, pistols, lever guns and tactical AR setup's so again a big objective is not what they need. IR does nothing to help with use in low light conditions since ability to see the reticle is seldom the problem with low power hunting scopes. At the ranges you are talking iron sights would be much faster and the fewer lenes you go through the less light is lost. Maybe a red dot scope with no magnification at all.
Do you smoke or have a non-alcoholic fatty liver, obese, diabetic??? Those things are knowing to reduce night vision!