River Rider, looks like we like some of the same guns. What firearm are you using? Mine's a Mdl. 57, and a Marlin lever in .41 Mag. A nice little carry-out-in-the-boonies combo.
What do you mean, "Blue Dot is erratic."? I've had good results with Blue Dot (13 to 15 grs., depending on bullets, etc.) I've had good results from H2400, and H110 & WW296. Those latter two are the same, by the way. Of course, every gun will shoot differently. I've used Beartooth Bullets, of 255 gr. hard cast with good accuracy. Also the standard 210, 215, 220 hard caset, plus Sierra 210 gr JHP, and Sierra 200 gr. JHP. (That one's a bomb! In fact they all are good.)
Go to
http://www.sixgunner.com and look for the articles on the .41 by Paco Kelley, John Taffin, and Jim Taylor. Great info.
Best of luck. J.B.