I guess one correct answer is good. You're up! It is indeed a 240mm gun. Paul was close with the aiming circle, but it is Soviet/Russian, and still current.
Those were the two I thought most people would get. The cannons are mine, You can read a description here of similar ones:
http://www.cannon-mania.com/images/Consignment/RP-AF4.jpg

Don't let our ignorance stop you. Everyone who's playing should drop and do a hundred as a penalty (on the honor system of course) and await your next question.

Well, at least two: M1 155mm and 203mm.

There were two 8 inch howitzers subsequently developed, the M1920 and the M1920M1.

Okay,easy one this time:
What was the largest land gun used during the First World War?

The Paris Gun. Also known as the Kaiser Wilhelm Geschütz, also it is often refered to as Big Bertha in some references, esp by the french, although that was the name orignially given to the L/14 howitzer was which was a movable 42 cm siege mortar.

The calibers of the Paris guns were 210mm and 381mm. The larger of the two fired shells gradually increasing in weight from 273 to 307 lbs. The gun I'm thinking of fired three types of shells weighing1,490, 1,960, and 1,980 lbs respectively.

Was it the French Schneider 520mm/24inch rail gun?

Btw, the French Schneider gun fired 3100 pound shells, so might be bigger than the one your thinking of.





Loads of photos here:

http://images.google.co.uk/imgres?imgurl=http://www.worldwar1.com/foto/ot9406.jpg&imgrefurl=http://www.worldwar1.com/foto/&h=349&w=600&sz=21&tbnid=H4r-RLeeVpcJ:&tbnh=77&tbnw=133&hl=en&start=6&prev=/images%3Fq%3Dschneider%2B520%26hl%3Den%26lr%3D

Dave, you got it, although interestingly, the one mentioned by Command Post can also be found as the largest, depening on which resource you use. According to "The Big Guns-Artillery 1914-1918" published in 1973 by BPC Publishing Ltd., on page it states that the St. Chammond 400mm rail gun was "the largest land gun used in the First World War."
I think the discrepancy may be that the 520mm may not have actually been fired in combat.

OK, my question.
Batterrie Todt, found on the French coast near Calais, was made up of four casemates. Only one was destroyed. How?

I'm going out in about an hour, and won't be back until sometime tomorrow, so you've got a while.

This brings to mind a discussion last month on the Battleship DG, about ammunition. It was an ammunition accident that caused the destruction. Two Frenchman accidently set it off with torches, I believe.

Yep, you got it. Your question.

Easy one-ID this:

I was sure after a month's absence someone would have gotten this one. Didn't mean to kill the thread-it's the XM777.