My old Borchardt in 219 Zipper improved likes IMR 4895 and am working on loads using IMR 4064 that is showing promise.  I am using 52 grain match bullets. Back when the 219 Wasp was king of benchrest 4064 was the powder of choice.  As posted above the 219 improved is virtually the same as the 225 winchester except the rim and I actually use a 225 winchester Wilson case holder to trim.  Enclosed is a link for the Lyman 44th edition which has 225 data as well as many old cartridges we never see anymore.  Tom  (You need to Login or Register to view media files and links)