I have a CVA Optima 50Cal. topped with a 3x9 Tasco Pronghorn Scope.I`m getting up there in years and can`t go up Hill and Dale like I used to.So now I`m just hunting the wood edges along weed and corn fields for deer.And I would like sight my Blackpowder in for 200 Yds.I`m wondering what grain Powerbelt and how many grains 777 Pellets would be best.And has anyone tried the new 777 magnum pellets?How many grains are they?And how about the new Platinum Powerbelts,any better than the regular powerbelts?