Buy an try it, i have parker hale 3 band, got 3 molds for conicals,shoots round ball best,at a shoot recently a friend borrowed me some of his conicals as i forgot mine at home,shot like a house on fire,now i,m going to buy another mold when i get some sparemoney(that means money the wife does,nt know about)experiment with different loads an conicals till you have the perfect match,then start over, the fun is pulling the trigger an maken smoke