Ok here is something you should read Ackman.
.22-250 Ackley Improved
About 1937 a man named Gebby and an associate, J.B. Smith completed the work on the wildcat 22-250, simply the 250 Savage case necked down to .224 with a 28 degree shoulder. Some years later, P.O. Ackley increased the 22-250’s case capacity by re-forming it by almost eliminating its body taper and giving it a 40 degree shoulder. Case capacity essentially duplicates that of the 220 Swift.
This text is based on information from “Cartridges of the World”, Hodgdon reloading manual, the cartridge designer and/or own resources.
The last line of this is the proof. P.O Ackley in all of his cartridges basically blew out the shoulder of the parent cartrige to give it more case capacity, which I stated earlier. More case capacity means more powder, which means more velocity, in each of his cartridges the increase was about 200 to 300 fps for a given bullet weight, but his charge increased by 2 to 3 grs. And seeing how the swift was made a commercial cartridge 40 years before the 22.250 years do make a diffrence. And in the 22.250 AI he basically increased the velocity to match the 220 Swift.
So I have 2 Questions Why did Ackley try to Duplicate the case capacity of the Swift when designing the 22.250 AI.
Did he think that the swift was the one to beat ?
If the Swift wasnt perfect for its intended purpose then why didnt Ackley make a Swift AI ? Was it because he didnt think he could Improve it enough to make it worth his time, or was it because he didnt think it was needed?
Now if you have some useful non dissing input to dispute these facts and answer my questions, then maybe you shouldnt write anything and get off it.