Lyman has a new sizer/luber out, an up-dated version of the 450. The new one, #4500, has a solid body, other than the hole in the bottom for the threaded shaft, and has a gray crackle finish (as if that matters.)
The nice thing is it has a longer handle with a round ball on it--gives better leverage on the down stroke. Fits perfectly on the current 450's. Cost was about $25 or so for two of them, postage included.
Walt