hey doug...i have a spolar too....and i used to own a pw...(same bushings)
if your bushings are to big just put small pieces of electrical tape inside...
build it up slowly and measure till you get the right drop...use a thin round rod and push from the center out...this will make sure you don't have any air bubbles....i've been doing this for a long time and it works great..try it.
Tape works until it comes off. It may never happen to you, but it happened to me.
I like to take a smaller bushing and open it up.
If I had to use a larger bushing, I would roughen up one side and build it up with JB Weld. Then file/grind away the excess.
I also use the MEC adapter and find I can get close enough to what I need. But I have accumulated over 50 assorted PW, Hornady and MEC bushings over the 6 years I have reloaded shotshells. Most came from "deals" on Ebay or from guys selling stuff off at shoots or the club.
The darn bushings are only $4.95 a piece. Why hunt down a used one. Just order several at a time like i do. I've about got 'em all. Why, i'm not sure but i've got 'em. Maybe if i ever quit using Green Dot i'll need them.---Matt
When I talked to Carter at the Grand, he said the difference in his bushings and the stock ones from Hornady, is that he sends the stock ones to a machine shop where a sufficient amount of material is removed so that, for example, a bushing for 1 1/8 ounces of #8 shot will drop exactly that amount.
I don't know if he does the same thing with the powder bushings or not. My shot bushings drop exactly what they are supposed to drop. My powder bushings do drop the exact amount of powder, too. Any variations, when I have weighed ten to twenty charges in a row, is very, very, small.