I have an SA sports crossbow, pretty sure its the terminator but I'd assume there similar. The scope that comes with them is terrible, shoots a little high (I can shoot pretty accurately because I'm used too it) but same spot every time. Fast but also a little loud. No issues with it so far shot it many times
This is my 2nd year using one and think it'd be fine out to 30 yards. I shot a doe with it last year at 20 yards and the bolt passed through just fine and deer ran maybe 50 yards. The scope isn't the best but once sighted in at 20 it's right on at 30 with the next crosshair down.