Red dots are great for anti-personnel use; a 5 MOA spot will get you about 5” groups minimum at 100 yards (since that’s as big as your spot is). Plenty good enough for wet-work. But if you want to hunt or do any target shooting, get a good scope.
I have a Barska 2X red dot and a Bushnell 3-9x50 for my SU-16 that I use depending upon what I’m trying to do. For fast/fun/personnel type practice, or sitting at home, it’s the Barska. For serious target shooting (varmint or paper) it’s the Bushnell.
OK, I’m starting to get it now. 5 MOA=roughly 5” of “covered target” @ 100 yards. It’s one of those things I never had to think about with my 40 year old lever action. I’m trying to get into the 21’st century. Lot’s to learn. Thanks again Soldier.