User blog comment:Kaido King of the Beasts/Chapter 865: Mother, Into Your Hands I Commit My Spirit/@comment-24442815-20170511233444/@comment-103.14.60.74-20170512014334

Those bullet could be haki imbued. But we all know that even haki imbued weapons cannot harm a skillfull logia user. just like akainu, kizaru & kuzan avoiding fatal damage againt haki users during the paramount war..