Hello I'm new to this forum and very new to casting. I want to buy my first mold and a sizer and I have questions. I'm interested in the Arsenal 225-77 Elvis ammo mold to cast 223 boolits. http://arsenalmolds.com/products/225-77-Elvis I need to buy a sizer to size the cast boolits. I like the Lee sizers but I don't know which one I need. Do I buy the .224 or .225 sizer? I plan to powder coat the boolits before shooting them. Also wondering if any one can provide load data for this boolit using Accurate 2460? I'm just a recreational shooter and do mostly target shooting. I have a 1:7 twist on my AR that's why I'm using the 77 grain boolit. I would prefer not to use a gas check if possible. Any help you can provide would be appreciated.