I am having a problems with a new to me 6.5x55. I purchased 2 boxes of 100 each Lapua brass. It came with a box from two different batch numbers. First time to the range for ladder work and a lot of the shells wouldn't eject. I have had gun checked by a gunsmith and everything looks to be fine. I sat down Thursday and ran every one of the brass from each batch through the rifle. In the first batch 52 of 100 would not eject. In the second batch 57 of 100 wouldn't eject. The rims appear to be too thick running .055 to.068. I checked the rims on some 308 brass and found them to be .043 to .048. The ejector can't seem to catch my 6.5x55 brass. Anybody run into this before and do you think my and my gunsmith's conclusion of bad brass is correct? If so what make of brass would you recommend I try? Thanks for your insight.