The Winchester Short Magnums(WSM) or Super Short Magnums(WSSM) are probably where you need to look. The WSMs come in 270, 7mm, 300 and 325 calibers. The WSSMs come in 223, 243 and 25 caliber.
In addition to the barrel, you would need to change the magazine, bolt head and bolt baffle. For a while now, Savage has only chambered the WSMs in large shank barrels. But aftermarket small shank barrels are available.
Here's a link to my 270 WSM build:
http://www.savageshooters.com/showth...3-Latest-build
You could also look into the Remington Short Action Ultra Magnums(RSAUM). The WSMs have eclipsed the RSAUMs, but there's a 6.5mm RSAUM wildcat that has a following. Can't say if Savage ever chambered any RSAUMs, but someone will probably chime in with this info.
Hope this helps and good luck with the build.
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