I have been using BIB bullets in my 22-250 that has a 1-14 twist for about a year now. I have shot 19 5 shot groups @ 100yds under 1/4", I average .45". I have a heavy 26" Lilja barrel and use 34gr of 2520. I can not shoot like this with any other bullets. Does anyone else have success with them? I think they are the best out there.