I want to try a Little Dandy measure for some away from the loading room reloading ,just for the fact that it can not come out of adjustment. So the question for the little dandy users is what # roter will drop 4gr. of trail boss powder. I do not have a Little Dandy now, so to pick the right one would be a shot in the dark. One option would be to error on the small side and open it up. I contacted RCBS tech dept. there suggestion was to buy a bunch of roter's and see which one worked. That was real helpful??
Little Dandy powder measure and Trail Boss
- Thread starter slowfire
- Start date
303EppsFan
CGN Regular
- Location
- Almonte,Ontario
RCBS sold blank rotors for the Little Dandy that could be drilled for custom use. It might be the easier way to go. Cut and try method.
I found the small diameter of the hole in the rotor would give inconsistent results because the grains in trailboss are large and odd shaped. I took a smaller rotor and opened up the diameter as well as the depth, and then it worked much better. I am away from my house right now, but will have a look when I get home. Okay what I did was took a spare rotor ( a no. 2) and opened it up. Their rotor bores are 5/16, and I found it was giving inconsistent results. I opened the bore to 10mm (.394) and went almost 7/16" deep. This gave me 3.7grs which is what I use for 38 special. The good news is that since trailboss is so bulky it takes about 1/16 inch depth for 1/10 grain so a little deeper or a little shallower won't make much difference. I'm a machinist so I just took it in to work along with my beam scale and some powder. Don't buy a bunch of rotors, at 16 bucks or so apiece you would soon be cheaper just to buy a dedicated powder measure and go that route. Especially since you haven't forked out for the little dandy itself yet, you have to factor in that cost too. I have found that the charts aren't very accurate, and I almost always had to tweak the rotors to get the weights I want. That said, I like it when I am doing small batches of pistol calibers on a single stage press and once you have the charge you want, I just keep the rotor in with the dies
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