Reloading .25 Rimfire

With the success of my other blogs reloading 32/38/41 rimfire and many requests i decided to do a blog 
for .25 rimfire reloading.

I had someone send me the following email. (thanks pat)
 I don't own a .25 rimfire, but after comparing the dimensions online, I believe it should be possible to produce an acceptable .25 Stevens round from the new .17 Winchester Super Magnum (WSM). If you cut off the neck and dumped the powder, you could replace it with black or Pyrodex. Not sure what to use as a bullet. But I suspect something could be found.

This sounds like a great idea so will try this first 

I don't have any yet but after a internet search the .17 wsm round has a diameter of .269 and length of .962 to just below the tapered top of the case where it would need to be cut off.
the .25 Stevens long has a diameter of .277 with a length of 1.12 
and the short is.276  and .599 in length

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I will try .25 acp brass with a blank 
.25 acp brass is .276 and a length of .62