Indeed. Read Landis's writings about .22 caliber varmint rifles amid the Golden Era of same in the 1930's and the history that led to what we now (often erroneously) take as fact. He was there in the thick of it and wrote quite eloquently. The .250-3000 was massaged with .22 bullets by experimenters like Niedner and Donaldson starting almost as soon as Savage introduced the .250 right before WWI, when standard .22 centerfire groove diameter was still .228". Wildcatters started necking down the 6mm Lee-Navy around the time our grandfathers (and great grandfathers) were born (ie: what we now call the .220 Swift). No new concepts under the 21st century sun, rather lots better hardware.
