What ratio of quality soft/solids/cheap practice bullets do y'all use for practicing with big bores? I'm thinking specifically about a 416 Rigby, where I'm using Northfork softs and Nosler solids. I want to get good practice in with the rounds I will be using to hunt, but I also don't want to burn quality ammo needlessly. Just curious on how often y'all use what for practice. Is it important to practice with solids at all after you ensure they have the same point of impact?