I have been shooting on my personal firing range at steel targets for about three years. My targets are normally about 35 to 40 feet from where I stand. My favorite weapons are .40 caliber Glock 23 and my 10mm Glock 29. Recently I have trying to shot live groundhogs out my bathroom window. I got one but have been missing more than I thought I would. When I spotted the groundhogs, It did not look very far, just a little further than my steel gongs. The groundhogs are roughly the same size as my gongs. Today I measured the distance from the window to where the groundhogs like to stand. It's 62 feet, point to point.. (More than I thought.) There is another difference. When I'm in my third story bathroom, I'm shooting down hill at the animals who are about two stories below me. When I'm shooting at my targets, I'm shooting slightly up hill. Does up-hill vs. down-hill make a difference? I could place a target at 62 feet but the hill side is getting steep that far away. I'm be shooting upwards about one story. I could re-zero my RMR red dot sights in for 62 feet from down on my firing range. Maybe I should place a cardboard box where the groundhogs like to stand and zero the weapon from where I'll be shooting from. I'm trying to minimize the noise I make in house. Edit####### I have attached a photo of my range and a photo of my sniper window. It's the left most window near the roof line.