NEGATIVE NEGATIVE NEGATIVE
So I got some of the backstory from my son. Basically during indoc all of the plebe candidates are required to fire off a dozen rounds so that the PCs are "familiarized" with the weapon. This requires a certain number of qualified instructors. My son and five others were put through this process so there will be enough qualified instructors to handle the next incoming class. Although my son is a 1C, he was selected to go through the course. He indicated it was a full eight hour course and their qualification required the firing of 300 rounds at various ranges, stances and hand positions with a minimum score to qualify. He is under the impression that the signed certification (ribbon and instructor qualification ) will be put in his jacket and he can take it with him when he graduates.
In order to small arms qualified for the Navy you MUST MUST MUST qualify under ALL ALL ALL requirements contained within OPNAVINST 3591.1F. Achieving the minimum score on the prescribed course of fire is only ONE ONE ONE of the requirements. Another of the requirements is that the course of fire MUST MUST MUST be administered by a qualified Small Arms Marksmanship Instructor (SAMI). In order to become a qualified SAMI you MUST MUST MUST attend an in- residence course with big Navy. If my memory serves me correct it is a three week course and includes pistol, rifle, shotgun and grenade launchers. It includes alternate shooting scenarios like low-light and with a gas mask. If your son was given an 8-hour course and told to go train the incoming candidates that is fine for general familiarization and its not a bad thing, but it CANNOT CANNOT CANNOT allow him to qualify anyone in terms of big Navy and authorize the awarding of a marksmanship ribbon/medal. I am curious as to just whom is stating that these incoming candidates have qualified for the ribbon/medal, what (if any) paperwork there is and if any of them are wearing the ribbon/medal?
The SAMI course is one of the most sought after in all of big Navy and you typically cannot get in unless you have an identified need and an identified need is typically defined as one in which the 0812 NEC code is listed for one of your billets in your unit. I am virtually certain that this is not the case for anyone at USMMA since it could only be for someone in Naval Science.
One could qualify at the range at USMMA but if the weapons and ammo are not owned by the Navy, you would have to import both the weapons and ammo in addition to a SAMI qualified instructor. This can be done but it is very difficult unless you have someone willing to put in a lot of time and effort to do a lot of paperwork for basically a boondogle for a bunch of KP candidates during indoc ... hence my skepticism.
Specific to your son, and his classmates who were told they earned a ribbon, A pers-4 (aka "page 4) is typically issued that documents this. I would suggest they take whatever records they have over to NavSci and ask for a page 4 to reflect their qualification. NavSci will then give them the definitive yea or nay on the ribbon. Without the page 4, I highly recommend NOT NOT NOT affixing said ribbon to ones uniform.