I'm new to the world of long range shooting. Currently the longest I've ever shot is 300 yards but a range just opened locally that goes out to 1,000 yds. Ive got a Nikon monarch 5 3-15x50 on my rifle now and for 300 yds and under it's been great. Is 15x enough for shooting at 1,000 yds? If not what are some good options that aren't going to put me in the poor house. Really not sure how often I'll actually shoot that far so I don't want to dump much money into a scope at this time.