I found this Website:
http://www.nikonusa.com/fileuploads/pdfs/OMEGA_manual.pdfVery Good Info using Spec Loads of 3 #7's= 150 Grains Powder and T/C 250 Grain Sabots, and
How to Quickly Site in your Scope to where you are Shooting for a Good Baseline to start fine tuning using spec Loads and Different Powder grain Loads and bullet weights. Paul