I am using Hoppe's solvent followed by their gun oil. When I got my 450 I invested in a good cleaning rod, a Tipton one-piece carbon fiber 36". Midway has them on sale at
http://www.midwayusa.com/viewproduct/?p ... ber=165130. They make two sizes, so be sure you get the one that goes up to 45 cal, which should be the link. I also invested in a Tipton Universal Bore Guide. It is currently on backorder at Midway (due in 3/7) at
http://www.midwayusa.com/viewproduct/?p ... ber=815732. I have the 20" barrel, and both of these work.
I clean from the breech in one direction only (down the barrel toward the muzzle) with a solvent soaked pad on a jag, followed by a solvent soaked copper brush (could only find one for a pistol, but I assume there is a longer one for a rifle out there), then dry pads on a jag until they come out clean (or repeat with solvent, as necessary), then a lightly oiled pad on a jag to finish.
I usually disassemble the bolt carrier, wipe it down with solvent, then oil it and reassemble it. The rest of the action gets wiped down with solvent then lightly oiled. I also have one of those brush and mop things for the AR15 that fit in the chamber, which I use.
But hey, I am open to corrections and suggestions for those who have better products and techniques.