Exactly. It makes no sense to single out semi-automatic firearms. Even if you did find microstamped shell casings at a crime scene, it doesn't necessarily prove anything. Criminals could also use this technology to plant false evidence.
“Even if you did find microstamped shell casings at a crime scene, it doesn’t necessarily prove anything.”
You are 100% correct. Any lawyer worth his salt will use this as “reasonable doubt” to get his scumbag clients off.
The firearms manufactures won’t make a line of pistols for NY only. And even if they do the criminals won’t buy them through the dealers so there won’t be a record.