I would go with the .225 with a 12" twist barrel. The typical 14" twist might not handle the 70gr. Speer bullet very well. The speer bullet is a bit soft, but if not driven too fast, will work OK on deer if "PLACED" properly.
: .228 bullets are too difficult to obtain in this part of the country - s'pose that might be the determining factor for me.
; I'd be happier with the .225Win. and 53gr. TS Barnes for shooting any bigger game than varmints. f need be, you can make brass from .30/30 brass, but turning the rims, necking trim to length and Fireforming.