What you're proposing won't work. Taking a .430" bullet to .452 or so is too big a jump. You want to go from bore size to groove size, i.e. for the 45 revolver you'd want bullets that were around .446" or so. I'd trade them with somebody who has a 44, and get the right bullets.
BTW, I have heard of folks having good results patching bullets for revolvers, especially ones made of things other than lead like lexan, but have never tried it myself.