I have been reloading for the swift longer than any other cartridge that I use, I thought that I had tinkered with every powder possible until I saw Swifty52 listed Benchmark ???????? I never tried that powder in a swift. Then I realized Benchmark was not even created yet when I did most of my load development.

My hands down favorite powder for the swift is W760 (most say H414 and AA2700 are the same as ???)
Never shot anything but 55 grainers in any of my swifts saved the 40's for my 222.
Always liked Norma brass the best and Fed 210's
All of my swift's have been picky with seating depth and prefer close to the lands
Have proved it to myself and others several times that a well tuned 220Swift is more accurate than a 22-250 10 times out of 10.
The only thing I could disagree with Swifty52 on is......H380, I Hate this powder, I loathe this powder, most temp sensitive powder ever