Omega, 11" DD Coil and Bottle Caps

[pine3874]

I'v been using my Omega with the 10" concentric coil for quite a while now and have never had a problem with bottle caps. Two days ago I started using the 11" DD coil and am digging one bottle cap after another. I found that if I wiggle the coil and the id numbers vary more than 2 or 3 numbers it is usually a bottle cap. However, I have gotten so many soild dime signals(84) that don't vary at all that turn out to be bottle caps. Does anyone have a method of telling the difference between a coin and bottle cap using the 11" DD coil?

 

[Monte]

because most of the sites I hunt are brushy, and littered with ferrous-based iron junk! Double-D coils, of any size, will not discriminate as well as concentric coil, and this is especially true with those pesky bottle caps.

Your stock 5

 

[pine3874]

Thanks Monte. Very useful information as always.

 

[Ed in SoDak]

Try bobbing the coil up and down right over the target. Takes bottlecaps down to iron every time on quite a few of the detectors I've tried it on. Works on .22 shells too, another otherwise variable ID nuisance.

-Ed