If you are using a LRF, think about this.

It just ain't that hard to hold under a bit for shots at 75 yds to 250 yds. Everybody I knew did it that way up until 20 years ago. Some of us even kept a range card taped to the stock way back forty to fifty years ago.

So I would buy a dependable scope with ballistic hash marks like the Boone and Crockett, or Ballistic plex. I would zero the main wire at 300 yds, and shoot to determine where the lower wires are actually zeroed. Add that data to the range card, and you will be set for a considerable distance.

People who choose to brew up their own storms bitch loudest about the rain.