At that distance they even have to compensate for the curve of the earth.

 

They just need to make a big mess... I think some of us have seen the gib factor of the 50 cal... now just imagine how small of pieces they'll have to bring back for confirmation.

 

Under federal law, the deployment of US military personnel (other than Coast Guard and National Guard) on American soil is prohibited. It is called The Posse Comitatus Act. It can be lifted under certain circumstances but only by direct authorization of the sitting U.S. President after gaining congressional approval.

Imagine how much damage that tank could be doing while Obama petitions the US congress to allow him to send in the Air Force.

The FBI by contrast operates 456 local offices each overseen by a Special Agent in Charge who is capable of making decisions autonomous of political figures like members of congress, President, or Governor.

Which would you rather have respond to a rapidly developing, ever changing, civilian endangering, situation? A highly trained, seasoned specialist or the President?

ox

 

And what kind of fool shoots right at the armor on the tank?

Take out the treads, engine, weak armor parts, drivers compartment, ect. Even the .50BMG is used against tanks.

 

and if you have ever heard an A-10's cannon fire.. WOW.. thats all i can say..

 

Wrong! Bush repealed the Act before leaving office. The military is now free to act on you and I as the President dictates.

 

You're right. They should buy 50mm.

 

No the 50 (12.7mm) is used against APCs, which in many cases are aluminum armored. The best 50 cal round can penetrate 3/4" (about 17mm) of steel armor. The thinnest armor on the M60 is 55mm, or over 2" and that is at the rear. Then you have to get through things like the engine etc. The reason why something like the 30mm can destroy a tank is because it is using depleted uranium rounds from above where armor is thinner. A tank can not be thick armored all over, so it is thick where it needs to be. Front especially, sides not quite as thick. The front armor on the M60 is 7", meaning sloped it turns out to be 315mm thick. M1A2 and other modern tanks have different armor so thickness doesn't mean as much, although what it has means compared to other tanks it has much thicker armor equivalent.

Here is a link to a description of the best 50 cal AP round.

http://www.fas.org/man/dod-101/sys/land/slap.htm

A comparison between 50 cal, 20mm, and 30mm.

http://www.fas.org/man/dod-101/sys/land/slap.htm

 

Well I guess that I know next time on the news when they say a man was brought down by an FBI sniper but he could not be identified.. Ill know why.

 

a .50bmg is still capable of stopping a tank with the right shooter and a 20mm is that much better

a tank is only as strong as the weakest part

 

i wonder how many deer i could kill with one of those 20mm's......hmm..

 

According to my publications the 20mm was developed by the soviets as a sniper rifle. It has been determined to be too big to be effective however and was eventually abandoned. Their main usage was in a permanent perch or guard tower in a heavily guarded installation. Basically it was a permanent or semi-permanent placement of the weapon. In addition it is far too large of a round to be consistently and repeatedly fired from the sholder. Even with the "suppressors" you mentioned it still is too much. It should also be noted those are not silencers, they are suppressors which will reduce the recoil and muzzle jump. Since a large portion of the noise generated from high power weapons comes from the sonic boom of breaking the speed of sound, it is impossible to silence them without loading down to a sub-sonic round. Further, by resorting to a sub-sonic round you lose not only speed and energy transfer to the target, you also experience a loss of accuracy which makes a sniper rifle pretty much pointless by then.

As a side note, I don't have the book here but one book talked extensively about sniper calibers said the longest confirmed kill was 1.54 miles with a 50 cal. The soviets claimed kills out over 2 miles with the 20mm but none were ever confirmed.

 

x3

 

FYI (via wiki)

Public Law 109-364, or the "John Warner National Defense Authorization Act for Fiscal Year 2007" (H.R.5122) (2), which was signed by President George W. Bush on October 17, 2006, in a private Oval Office ceremony. This act allows the President to declare a "public emergency," station troops anywhere in America, and take control of state-based National Guard units without consent of the governor or local authorities, to "suppress public disorder."


This was repealed in 2008 by HR 4986: National Defense Authorization Act for Fiscal Year 2008, reverting to the previous wording of the Insurrection Act.

 

Where are you buying 3600fps .22lr rounds?