Yeah, Kevin is absolutely correct... The newer coins are made of different metals, most of them being 'Steel Centers' with Nickel or Copper coatings. It makes them VERY difficult to pick up without some help from a detector that can 'hear' them a bit better or the use of LOW discrimination which can result in a LOT of digging!
I use the ATPRO and have a lot of success finding the new 'Clad Coins' and although that's normally not my focus, it's NICE to pick them up! A bunch of Quarters, Loonies and Toonies can sure help make the day and put Gas in the Tank (especially when one drives a HEMI!
In your case, the EuroAce is actually pretty good at finding ALL types of coins and the important part is to keep a close eye on the VDI. The EXTREME fluctuations above penny and back into the low Foil/Iron Range along with some 'blanking out' (loss of signal) is a good indication that you have a piece of 'Clad'.
Here is a link that shows some of what I'm talking about.
Anyway, since you live in Ottawa, you have EXCELLENT hunting grounds there and should find some VERY OLD Relics AND COINS... (I'm a little jealous!..
Cheers and Good Hunting..
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