Have had 2 different rifles in 220 swift. First had a ruger model 77v bought it in '78 fantastic shooting rifle. Had a handloaded load that group 1/2 in at 100yd, under 3 in at 300yd. Should have never sold that rifle. Second rifle is a Rem 700 with heavy fluted barrel shoots good but not like the ruger did.
For what its worth that ruger loved 52 hpbt match sierras with H380 spheric powder-3800fps.