I have a Rem 700 with a Lilja barrel in 22-250. This is my third Lilja barrel on this rifle. The others lasted about 2500 rds. I shoot 50 rounds a week using 33gr 4895 with a BIB 52gr bullet. Since I have this barrel a bad day with it was 1/2" groups. I have 28 groups under 1/4", these are honest measurements. Last week was 3 groups of 3/8" - 5 1/2" groups - 2 1 1/4" groups. Yesterday my best group was 3/4" with most at 1". Same load same, case prep,same everything. This barrel seems to not have lasted as long. I wonder why? Average velocity is about 3300 fps. Same thing happened with the other barrels, they went from great shooters to lousy all of a sudden. I only have about 1800 rounds thru this one.