Bob, I shot the old Ruger tang safety 220 Swifts and the Savage J models.
My favorite load was 43.5-44.5g of AA2700 with a 50g NOsler Ballistic tip, Fed 210 primer, bullet touching the lands, and it works very well with chucks, yotes, and crows.
Velocity is a solid 4000 fps. Accuracy was three shots in a hole.