Nothing for a 175 SWC, but for range plinkers, I stick with W231 never been disappointed with it yet. Have used Unique with good results too, but have started to replace it with Universal as my LNL Powder Measure isn't fussy with it like it is with Unique.
My EAA Witness Match really likes 6.6gr of W231 behind a Nosler 135gr JHP.
Still experimenting with powder choices for a 180gr FP, but it's been freezing here so I've sticking to the shop for now.