Well I wanted to help the guys out who are interested in this stuff. I'm going to share my knowledge and help you guys to start with this hobby.
LEGALITY!! Metal detecting is illegal in loads of places so if you head out to an area where it's illegal to dig prepare yourself!!
Wear camouflaged clothing, dig as quiet as you can and if you get caught stay friendly, you might get away with a warning.
In Germany it's always illegal to dig unless you have a permit, the fines are really high you can even end up in jail...
I have dug in Germany but it's at your own risk!
First of all you need a metal detector I recommend using a Garrett ACE 250 or a Garrett Euro Ace,
these two metal detectors are rather cheap (250-300$) and easy to use but most of all they work!
I mostly use a hand shovel, a hand saw can come in very handy to cut through tree roots in your digging area.
Whatever you want, gloves are a must though unless you like blisters on ye fingers.
Camouflaged clothing can be handy if you are digging illegal.
UXO's ( Un-exploded ordinance)
Don't be careless guys, always do research on places before you go metal detecting. 70 year old mines can, and in most cases, are, still functioning. They're soldiers that never realized the war was over. They're not like the movies either, 95% of landmines you will never see until you step on them, the other 5% have been revealed by erosion or rain washing them away, which means even areas that aren't minefields, but downhill from them, can have mines that were washed away, which will still be active most of the time.
I guess the best way to show what I mean is this picture. A burnt-off, mostly barren area would easily be the best place to see a mine, but you still can't see shit in this image. It's somewhat low quality, but that's pretty much how your vision will be if you're only paying attention to your metal detector.
There weren't many made in WW2, but there are low-metal mines too, which means your detector wouldn't even detect it. So the only real advice I can give is to do your research, and leave the area, on the exact same path you came, as soon as you see any kind of mine indicators. The most obvious ones are keychain looking objects with 30+ arming pins on them, and metal tubes, sort of looking like a disposable launcher, like a panzerfaust, but wider. They were used to contain mines. Less obvious things include metal or wooden spools, used for tripwires, or individual arming pins. Everything else will just look like normal wartime junk, especially after rust and such takes their toll on them, so there's no real point in describing them. Just be safe guys!
The most important step of all is research, its not likely that you are going to find interesting items without researching first.
You can use all kind of media for this, books, the internet and old people who might know something.
For my trip to Schönberg (http://www.facepunch.com/threads/1123012) I mostly used the internet, google maps is also a good idea to look at
if you are looking for military relics you best search for battle maps of some kind. They hold loads of information and can really help you out.
Here is one of the maps I found for my Schönberg trip:
If you have finally found the location where you want to dig how do you start?
Simple, look for strange pits or dug outs in the landscape even after 70 years you can still see the fox holes and the trenches
those are a good place to start.
Also urundeadmom wanted to add this:
Its also important to look for trees, like for example if you have a hill that has only 1/2 meeter high grass, and you find a large group of young trees growing somewhere, that means that the soil has been moved around for a trench or bunker, its most likely a trench, several times i have seen areas that have a about 20 m long line of young maybe 3-4 m high trees that was once a trench.
That and soil type is important,
The best places to look are wet marsh like areas with A LOT of mud, the mud creates a almost oxygen proof seal that preserves items incredibly well. Regular dirt will hold items considerably worse with a lot of oxidization and rust occurring. Sand and dirt-sand mixes are the worst with items quickly deteriorating and no noticeable markings left on them.
Here are some things you could find:
Russia is the place to be for WW2 related finds, check this out:
These where all found on one single trip! (not by me)
Cleaning your items:
Most of the time it's enough to gently brush the rust of, you can treat your finds to prevent more rust forming.
If you have a really rusty item that is still hard and not rotten you can use a solution of oxalic acid to remove the rust,
this again is at your own risk, you can destroy your item.
If you do it correctly it can really look good though:
This guy is not careful enough but his finds are nice.
TOP FINDS: (These are finds of many different people.)
-Always dig around the signal! You don't want to stick your shovel into a grenade or bomb and
you don't want to damage the items you dig up.
-Please fill up your holes after you dig and also don't leave any garbage behind.
-If you find an explosive don't move it, leave it be and call the bomb squad/police.
-If you don't find anything don't worry keep on searching you'll find stuff eventually.
-Digging is really exhausting, always bring enough food and water.
In this thread you can post your finds, ask questions etc...
You can ask me anything you want!
If anyone wants to add something to the op just pm me.
You can also ask me anything you want to know.
I think that's it for now.
I had no idea where to post this so I just posted it in the general discussion section.