I have seen erratic results with lilgun in a 221 Fireball rifle. Using a couple tenths below a recommended load I had excellent accuracy with a couple of groups so I loaded a box. Later, shooting rabbits, I had a couple of blown primers. The rest of the brass looked fine. Backed off a couple more tenths and had similar experience. No idea what causes it, but I won't use it in a Fireball again. I may try it in a Hornet since everyone recommends it for that.
Jerry
