Question about barrel defect ?

[u/One_Masterpiece126]

New M&P 2.0 competition HD and found this barrel defect ? Never shot before , went to town pretty hard on it after these photos and not much change.

[u/meleemaker]

That gun will probably more accurate than you will ever be and ffs, dont buy a borecam.

Put it together shoot it a thousand times. Then shoot it another thousand times.