[tqtran]

What's the deal?

It is currently LEO only and can only be purchased by a department or agency direct from FN.

What is the bullet design?

FMJ, small front hollow cavity, steel cap, aluminum core

Is it basically the same as AP for the 5.56?

Basically but aluminum core instead of lead for half the weight

SS190

 

[tqtran]

Re: Ammo

I thought any .22 bullet and under, no matter what fired it, or what it was made of was considered AP by the ATF.

I think you might want to edit your statement there. From what you said, a .22lr is AP :lol:

 

[tqtran]

If you want to make a subsonic round then yes. 62gr is pretty heavy so it wouldn't go supersonic.
I remember a thread somewhere here talking about what you are suggesting but I refuse to see the "search button" :lol: so I am not going to even suggest that. I would say ask wildeye111 or MO for confirmation since they are the resident experts on reloading.