I also have a CVA Optima, using 250g Hornady SST, 45cal, with 50 cal sabot and 150g of 777 pellets, i have my Optima, shooting 50-200yards all kill zone, dont know why people talk like its hard to do, should be about 1.5 high at 50, about 2-2.5 high at 100, about 1.5 high at 150, and low 2.5 at 200, pretty close to horandy's balistic chart if your gun likes it, mine does, Maybe i am just lucky.