The most inaccurate version of PI would have to be...
Top Gun
My guess is the M1917 Browning machine gun in 30/06
MP44
The AK-47 is the most lethal gun because you can learn how to use it in one hour or less. It is also the most produced weapon in the world.
I assume that the most inaccurate version of pi would have been plain 4 or 3.2 from the Indiana General Assembly of 1897.
The 30.cal machine gun.
It's the Luger .45 ACP pistol.
the sten?
the best gun from WWII had to be either the trench gun(a shotgun) or the springfield. no questions asked. The most reliable are the lee enfield and the 7$ gun(stengun)
back, about in the 1800's most guns were imported from America all over the world. the most popular gun was the Winchester shotgun.
the world is flat