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As much as 25%?
"NIMH estimates that over a quarter of Americans suffer from some kind of mental illness"
I think I also read somewhere or heard on the tube that there are @ 500,000 school staff in the USA. Actually that seems low; but anyway, taking those 2 figures: 25% of 500,000 is 125,000. Maybe arming all those folks might not be such a great idea.
Remains to be seen what if any modifications were made to the 223 used in the shooting Here's a little info on the 223 bushmaster:
The AR-15 comes in many sizes and has many options, depending on the manufacturer. The part shown bottom center is the lower receiver with pistol grip and trigger assembly. Under US law the lower alone is the component legally considered the "firearm". Type Semi-automatic rifle / Service rifle Place of origin United States Service history In service 1958–present Production history Designer Eugene Stoner Designed 1957 Manufacturer ArmaLite, Colt, Bushmaster, Rock River Arms, Stag Arms, DPMS Panther Arms, Olympic Arms, and others. Specifications Weight 2.27 kg–3.9 kg (5.5–8.5 lb)
Cartridge .223 Remington, 5.56 NATO Action Direct impingement / Rotating bolt
Rate of fire 800 rounds/min (fully automatic versions only)[1][2][3]
Muzzle velocity 975 m/s (3,200 ft/s)[4] Effective range 400–600 m (avg 547 yd)[5][6][7] Feed system Various STANAG magazines. Sights Adjustable front and rear iron sights
And this:
Semi-automatic AR-15s for sale to civilians are internally different from the full automatic M-16, although nearly identical in external appearance. The hammer and trigger mechanisms are of a different design. The bolt carrier and internal lower receiver of semi-automatic versions are milled differently, so that the firing mechanisms are not interchangeable. This was done to satisfy United States Bureau of Alcohol, Tobacco, Firearms and Explosives (ATF) requirements that civilian weapons may not be easily convertible to full-automatic. Despite this, through use of a "Drop In Auto Sear" or "lightning-link," conversion to full automatic is very straightforward (sometimes requiring slight modification to the bolt carrier).
800 rounds per minute
and this:
the AR-15 has more variants than any other rifle I know of. The compatibility with both .223 and 5.56 rounds makes the Armalite extremely popular with disaster preppers. There are variants chambered in other rounds, such as the .50 Beowulf, a 50-caliber round developed for the military which is designed to be used against vehicles and other harder targets. Those very high powered rounds are available on the civilian market.
There are other very dangerous modifications, including the ability to have a rifle that is legally a semi-automatic weapon, but functionally an automatic weapon. These completely legal devices are called "sliding stock" devices which allow shooters to bump-fire their weapons.
These are legally semi-automatic weapons because the trigger is pulled each time the weapon fires. You can see the weapon vibrating, going further back and forward than it normally would. The Recoil is pushing the weapon back, while the shooter pulls the weapon forward. A piece of the stock pushes the shooters finger off of the trigger, and the pressure pulling the gun forward pulls the shooters finger back on the trigger again.
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