22to45:
As the others have said, its not advisable to draw jacketed bullets down that far. I've seen pictures of bullets where guys have tried to draw them down too far, and they've actually come out of the draw dies with curves in their shanks. Also, I understand the separation can be great enough that you can hear the core rattle in the bullet.
I have the dies, and if I can free up the time I plan to begin making bonded bullets in .311 and .312, however, there are several custom bullet makers who already do this. The Corbin web sit has a listing of custom bullet makers, and if you look there, I'm sure you can find what you want.
However, it would be well worth checking out Steve Redgwell's site at
www.303british.com . Steve makes 200 grain bullets with heavy jackets in .313 and .314 diameters, and he may be willing to bond some if that's what you want for your magnum. He doesn't give them away, but last I heard his prices were comparable to some higher end commercial bullets. You may be surprised at the bullet size you should be using in your gun if you were to slug the barrel.
I have a P14 chambered in .308 Norma with a throat opened up to handle .303 bullets myself.
SVT 40:
I believe that Lee dies are designed for drawing down cast bullets only, while CH 4D dies are designed to be used with jacketed bullets as well.