If you use WW brass, you can easily get (well easily with a compression die and plug) 72 gr of 2F Goex under a 540 gr Creedmore bullet and a .060 LDPE wad.
Use either CCI BR2 or Fed 210M primers.
Which rifle did you buy ?
I have this one, got it when Cabelas cleaned them out for 1200.00. It weighs 13.5 lbs. I had it rechambered to 110. (I also have a Shiloh 110) and a bunch of other BPCR rifles.
Don't go thinking about getting a rifle rechambered to 110 unless it weighs 12/13 lbs (in my opinion). They can get a bit tiresome to shoot in long strings if they don't weigh enough. I let a 45-100 in a rifle that weighed enough get a run at me once, once. I thought I broke my collar bone.
The Pedersoli rifles can be made to shoot very well. I shot the group in the first target below without doing any load development. I just stuck 108 gr of 1F and a 550 gr bullet in a case (well a little more than that).
That was shot at 200 yards off sticks with soule sights. The one in the lower corner was a called pulled shot.
The last target was done off sticks at 200 yards with a 45-70 using soule sights. That is 5 shots. Most bolt guns won't shoot that well without a lot of work done to them. That was shot with a CPA Stevens 44 1/2 using plain old 2F Goex - 72 grains, WW cases, Fed 210M primers and a 540 gr Paul Jones Creedmore bullet
