I've messed with handi's for some time and now have a Ultra Rifle in 25-06,.6 for 3 hots consistant. A 12ga rifled trackerII barrel fitted with Hornady SST slug 3 into .75 at 80yds. I've had a load of the Ultra Varmints in .223. My ultra will be going back for a .205 barrel after the first of the year. If your interested in making them shoot go to.
www.varminthunters.com/tech/nef.html 
