Picking a new Shield .45 Wednesday need advice on break in. Do I take it home and clean it first or just go shoot it take it home and then give it a good thorough cleaning? Starting with Win white box 230 gr. How many rounds is the break in before carry?

I also need a good medium/light range load preferably with a clean burn powder. New to pistol reloading. I have a Mec Marksman single stage and a Lyman Gen 6 to throw powder charge. Also what type of dies and brand are best for this caliber.
Thanks in advance.