I have 5 pounds of "STM" brand 0.047" x 0.255" stainless steel pins, which happen to be the perfect size to stick in the necks of cases fired in my rifle's chamber. I mean they jam in the neck so that they won't shake out and I have to yank them out with tweezers. It seems 0.255" pins are the most popular size. I see media with shapes other than pins, and mixed-shape media which probably have .255" pins, also diagonal-cut pins, but I wonder if anyone has found an alternative to .255" pins that works very well and won't jam in primer pockets either?