Maybe a couple pieces of advice. Try 75 grs. of 2f and equal volume of shot. Magnum caps work best but I guess #11s will work also. Load one barrel, leave the ramrod in it, then work on the other. No caps till their both loaded. If one is loaded and capped, remove the cap to load the other.
If you shoot that shotgun, your life will change. You will want to shoot trap, then take it after doves, pheasents, grouse, ducks, and etc. I haven't shot my Benelli in two years since I bought a Pedersoli 10 ga s x s
Best of luck with your shotgun, it's a keeper.
C F