gold dot question

[kt]

recently bought a box of 9mm 124 gr. +p gold dots. on about half the box of shells you can see where the bullet sits in the case. it is noticeable how far in the bullet was pushed in the casing. is this ok? not that it bulges out but you can feel where it sits like maybe the bullet is a little over size? they are nickel cases not brass. not gonna shoot them until i can gather some infor.
kt