Okay, so I now have a Handi Rifle in .280 Remington...   

For some reason I'm the type who likes to use what I got rather then buy what I need.   

  And one thing I got is 
plenty of 30-06 brass!   

  But I 
need some 280 brass (see my first sentance  

 )
I have never necked brass down to form another case.   

  I've necked brass 
up; for instance, all my .260 brass is necked up .243 brass, .308 up to .358, etc. etc..   

  But I've never dared necking anything down...  I dunno, maybe something about thick necks and pressure or chambering problems and having to buy a neck turning tool to thin them down and that leading to obsessive/compulsive measuring and turning the necks on every piece of brass I shoot... stuff like that...  

Anyway, I'd like y'all to put my mind at ease and tell me of your (un)happy experiences, or even conjecture, in necking down brass.   

  If I can do this who knows what will be next!?  .308 to 7/08?  And dare I even suggest... propose... think of... 30-06 to 25-06?   
