I just bought the same pistol - the sale was too much for me to resist
I'm partial to slower powders and nothing heavier than 180gr. My favorite powder is Longshot, mainly because of availability. Brass is Starline. Missouri Bullet Company fodder, 155gr and now 170gr coated. I always start with Hodgdon's load data, run them over my Crony and go from there.
I like Speer Gold Dot for SD bullets now, 155gr, because they make prettier mushrooms. I was a Hornady XTP fan for years, so I like pushing a 155gr @1200fps. But I don't think that is necessary with the Gold Dot and I may go to 180gr @1000fps for a change with the M&P.
I like Winchester primers best when loading on my Dillon as CCI gives me a bit more trouble priming sometimes.