Hard to say without some definition on what bullets or powder you like.

I notice you buy a good bullet for that Omega.... ie... 220 DC's.

So why not go a little different with this one --- say perhaps 245 gr. Barnes Spit-Fire or 200 gr. Barnes XPB... both easier loaders like your Precisions & this time you are trying copper hollow-points that perform as well as your leadDCs.

No matter what powder you choose, always start with70 grains & either stay there (or) move up in 10-grain increments until shot groups spread -- then back-down 5 grains. I never exceed 110 gr. loose or 130 grains pellets using my 777 FFF loosein my Omega. Stay real close to what A & H recommends -- especially using 777 FFF loose.

http://www.barnesbullets.com/products.php