Winchester WLR primer issues

[Gun Surfer]

CCI 41 failure thread posted over at AR15 on 3/16. Thread linked below, but in case you cannot see the pics, I included one. In another pic of his bolt face, it put a dimple where the failure occurred. (Another guy posted a pic of a bolt with dimples in a ring all round where primer pocket was located, supposedly caused by CCI 200s in that case.)

Does this pic familiar? Some of the speculation over there is on a hot 600yd load, or bad primer pockets / poor pocket prep. I use lots of Win LR never had this issue, or ever on any reload and hope I never do.

CCI 41 primer failure. - AR15.COM