Re: .220 swift loads
My swift loves 38g of IMR-4064. It produces .3" 3 shot groups at 100 yards, 2" 5 shot groups at 300 yards. It shoots 3825fps. Winchester case, Fed 210, OAL=2.7" This is a Ruger 77 Target. Also shoots the 52g A-MAX very well. Load testing proved that 37g of IMR-4064 puts 5 shots underneath a dime. IMR-4064 seems to be the ticket for my swift. I have tried RL-15, H-380, and IMR-4831. I have shot 40g VLC and 50 Vmax Moly Coats. The only powder my swift DID NOT like was RL-15. It consistently produced 1.5" groups while the rest were 1" or less.