Your going to have to do some testing to know which powder, bullet, sabot and load shoots best out of your particular gun. There are a lot of different bullets and sabots to choose from. The 2 powders I would test first would be Blackhorn 209 and 777 loose grain (I don't like pellets). Primers will be another multiple choice. I prefer CCI 209 primers but that is just what I like. With Blackhorn 209 powder all you need to clean is some regular Hoppes bore cleaner and some patches. Tools to load with will be some form of powder flask and measurer/I like the TC-U View Powder Flask and the TC-U View Powder Measure but then again that is just what I like. I believe Cabela's has 2.5X10X40 Nikon Monarch sopes on sale right now for $199. To my knowledge the only difference between a Pro HUnter and the Endeavor is the Endeavor has the finger remove breech plug. Magnum means you can load up to 150 grains by volume of powder in your rifle. I bought my TC Pro Hunter 50 cal ml last Dec 24 for $739. It is Black synthetic stock and fore arm and a fluted SS barrel.