I bought the 223 carbine barrel with the intention of making cheap light loads for shooting instead of 22 LR which I was afraid was going to be unavailable or too expensive to shoot. Funny how much we will spend to save a little money isn't it? So yesterday I was contemplating a light load using a 224415 boolit with bullseye and I happened to look at the shelf and there was my tin of 22 pellets just sitting there, (another just in case I can't find 22 lr type purchase). I wondered if a primer would launch one of the pellets down a 22" barrel and I found out it would in pretty short order. It has enough power to dent 1/4" plywood when it impacts it. My questions begin with how small a charge of Bullseye can I get away with using to get a little more power but not much noise and wondered if anyone had done this before with good results. I guess I could try one grain and two grains and three grains but thought it might have been covered already. Also, going back to the 415 boolit, does anyone have experience with downloading that one to extremely light levels. Thank you