I am building a 6.5 creedmoor for f-class type shooting. I am looking at the nikon monarch scope line. Would a 6-24x50 work for 600 yard shooting or how about the 8-32x50? The problem with the 8-32 is that it only comes in the standard plex reticule. The 6-24 comes with fine cross hair though. Is the 24 power enough??? Thanks And any info on this scope line would be great!! Lee