I need an optic to spot hits on steel at 600 yards. So basically I want to be able to see the splash on the steel not bullet holes on paper. When I go shooting to my local range sometimes it gets so busy and loud it is hard to call a hit or a miss. I wont be spotting my own hits, I will have someone else spot my hits. The only scope I own is Nikon 4.5-14x40 and it is on the rifle so I don't know if it is strong enough to spot a hit at 600 yards. What power is enough for 600 steel? I would prefer binoculars since they can serve a dual purpose or a rifle scope since it will serve a dual purpose. My budget is pretty tight, right around $300 give or take. Is a spotting scope needed or can I get away with a rifle scope and or binoculars?