mrsinbad, thanks. It may be awhile yet. I'm still in newbie info-gathering mode. I have a design in mind which at the moment is half-drawn, somewhat more than half thought-out and maybe half-baked /ubbthreads/images/graemlins/smile.gif. To bring it to light I'm going to need a lathe, etc. It may be a while before I commit to materials. (See the "7x44" thread). Looks like folks are always looking for metal reflectors so if I do go for it, I'll certainly consider making it a group-buy opportunity.