These problems of POOR LB performance go back quite a few years. The very first offerings were GREAT! Most 12's were putting up Great numbers, 250 to 280's at 40 with the right choke, for the first few years. Then things went South. Some said new wads, some said the Shot loc technology had changed but many had problems then. Today, it seems it is Hit or Miss with many offerings, if you can find them. Many went the LB route because at the time Hevi 13's were about $5 a piece, compared to a box of 10 LB's were around $20. Now many are trying to find a suitable replacement for TSS that doesn't break the bank. Those that have been around when the LB's were popular can elaborate more.