New to board, Howdy. Looking for advice, as in does this make sense?

Scope is a Bushnell 3200 1.5x4.5 Firefly, base/rings are stainless Warner Maxima, and the gun is a new .50 Omega in stainless with laminated stock.

Here’s my plan for getting the scope rough sighted. 1. Put base and scope on gun. 2. Remove breech plug. 3. Stabilize the gun in a vise on a table. 4. Look through the barrel at a target 25 yards away. 5. Move target and/or gun until I see center of target through center of barrel. 6. Without moving the gun (or target) adjust crosshairs of scope to center of target. 7. Put breech plug in and do some shooting to zero scope.

Any help with loads would be appreciated. I have a couple different Powerbelts to try, 240 grain .44 XTP’s, 250 grain .45 Hornady JHP. I have BP, Pyrodex RS, and 777 to try.

My back round, I’ve hunted 15+ years with a .50 Lymans Great Plains I built from a kit. The Great Plains is a round ball shooter with iron sights. I’ve always shot BP and a patched round ball. I bought the Omega for those situations where a round ball just doesn’t cut it (like beyond 50-60 yards in low light).