Thanks much for all the great info. A 99 chambered in .303 makes sense but how Savage may have stuffed a .30-40 into the receiver without major modifications still intrigues me.
I got curious about that same thing after thinking about the problems I had fitting a .410 barrel and just getting the action to handle the larger rim of a .410. Comparing specs the 30-40 Krag has an even bigger rim - 0.545" compared to the .410 @ 0.528" and the .303 @ 0.506".
What really surprised me was the length, the 30-40 is shown as 3.089" compared to the .303 Savage at 2.520". The .308 Winchester that required some changes because of it's length is only listed as 2.800" - my thought's are that it would almost certainly take a lengthened receiver just so the 30-40 would fit in the magazine.
![[Linked Image]](http://i200.photobucket.com/albums/aa105/GeneBB/research%20clippings/.303%20and%2030-40_zpsoaafrofr.jpg)
