As M'bogo said, most spire point bullets have to be seated deeply because of the shorter ruger magazine. The case mouth will be past where the bullet ogive starts and it may look like a rocket in a silo. The solution to that is to use bullets designed for the hornet. I now use only by 35 grain hornady's in my ruger. The ballistic coefficient is not as good, but I figure the hornet to be a 150 yd cartridge and so ballistic efficiency is not that important to me.
For 40 grain bullets and heavier, hodgen's lil gun (as others here have said) and accurate arms 1680 are hard to beat. For 35 grains or less, a slightly faster powder works better, and I just use the classic hornet powder, "2400", for those lighter bullets. The old timers trick: use small pistol primers.