Twist - How fast can we go?

Hi guys, calling on some knowledge here.

I have this little pet project brewing in the ol' noggin. What I'm looking for is a SUPER fast twist 224 barrel chambered in .223 to twist onto a savage (AS IF there were other options ;D )

We're talking 1 in 6 or better. Anyone know where I might find one?

My idea is a little crazy. Get this barrel cut to 16 1/2 and throw 90 grain VLD's around 1000 FPS and use my .22 hornet rated rimfire supressor to end up with a 223 that will duplicate 300 whisper trajectory and quietness (is that a word??) without the cost of buying a 30 cal centerfire supressor.

Sound cool? I like it.. only problem is find a barrel that quick and affordable. Any suggestions? Thanks in advance.

-J

I can get you a rock creek or brux in what ever twist you want, and cut it to 16 1/2", and thread for suppressor.