H4350 is ADI powder, their AR2209. They have 30-40 Krag data on their website, also a good powder equivalent chart. They show a 40gr start charge and a 42gr max.  Velocity range of 1874-1950fps, out of a 24" test barrel.  H4895 is also ADI powder, but they didn't use it with a 220.

My old Hornady 3rd edition (1987) shows a max load of H4895 as 36.3gr@2000fps out of a 30" barrel.  Start charge of 30gr for only 1600fps.  It's always been known as a powder that works well for reduced loads.