75 feet? does your range double as a bowling alley, LOL Really LOL
Indoor rifle range. Pretty standard, I think, for that.
You do not need to be able to hit a target at 500 yards, but you better be able to hit the targets that are closer to you. When the zero’s defense force comes for you, they will be a lot closer to you than 500 yards.
I practice hitting targets at 5, 20, 50, 100, and 1000 yards.
Also, with my AR I am very accurate to only about 400 yards, because of my eyesight (I do not have a scope on my AR), which is not a good as it was when I qualified as an expert. But with my cheap Mossberg 100 ATR and cheap Simmons scope, I can nail them at 500 yards. However, I do not consider the bolt action 100 ATR to be an effective weapon of defense.
When the SHTF, most of the fighting will be real close and personal. I will use my Remington 870 12 gauge,and my SA XD 45 ACP to protect my family. If the fighting gets to the streets, then I will use my AR.
Train your sons and daughters, take your friends to the range and teach them too. We will need everybody we can get to stop the libs from enslaving us.