I would guess those "drops" were shotgun pellets that were fired into the path of the bullets and the camera just picked up the ones that HAPPENED to contact the bullet.
Not sure a novice is quite up to shooting a bullet with another bullet that often!!! LOL Course, there are much better shots out there then me no doubt!!
Hell, women say us guys can not multi task, damn friend, your pulling several of us up with your performance today, congrats and keep it up, makes some of us look bad though. LOL You need a beer or at least a foot rubbin tonight from the other half!!!