[mk23]

Yeah, if it doesn't fit the AP definition, then a 3rd party could make it. If they do, they can choose the components so it's stays away from the AP classification... They could copy the SS109, but just lighter.

 

[mk23]

right above that is

ATF has specifically exempted the following rounds:

5.56 SS109 and M855 NATO rounds, with a steel penetrator tip.
.30-06 M2 AP ammo.

the ss190 is not different at all because it is the same as 5.56 SS109 and M855 :roll: :idea: :arrow:

Yeah, it's the same diameter bullet. I use 55 FMJBT for my subsonic reloads.

http://www.cs.cmu.edu/afs/cs.cmu.edu/user/wbardwel/public/nfalist/ap_ammo.txt

 

[mk23]

So is the SS190 that trickles down the chain legal for civies to buy?

I have seen it at some gun shows before with no purchasing restrictions. Just VERY expensive.