I tried a box of the CCI BR about 10-12 years ago - didn't show any improvement that I could see on paper .
I think I still have half a box - I'll try them in my 280AI 180gr berger Hybrid load - can't hurt .
I've read similar reports of neck turning brass - one LR shooter on youtube can't fire a round without a turned neck - another [Sam Millard Panhandle Precision] says he never got any improvemet in any barrel/cartridge . More than one way to skin a cat I reckon .
