Consider this web posting. "Barrett M107 Sniper Rifle used in Iraq and Afghanastan against Taliiban."
Sniper vs. Islamicist
Read on down. Islamic observation noted.
This weapon adds range over the .308. But once the .50 got introduced, the enemy learned of a cheap way to kill helicopters.
BTW::: .50 single-shot guns are cheap. Fact is, Taliban and the Iraqis didn't know about heavy sniper guns till U.S. Army introduced the Barrett and allowed publication of descriptions. SNAFU ==>> Coffins.
BTW: New Jersey banned the Barrett. A sane state.
This weapon has potential for bringing down an airliner. With one shot.
Allowing general ownership of this monster is crazy misgovernance, as observed in 48 states.