Coil sizes

[RonStar]

Hey folks. I have a Fisher F5 with the DD 11" coil. I asked the question earlier on coin shooting and relic hunting about which size coil to get next. I am finding the bigger coil is not the best in highly trashy areas. I am not looking necessarily at brand name but rather size. Keep in mind where i live i mostly hunt open park fields that have bajillions of pull tabs and bottle caps.

I find i just cant separate signals for coins past junk even when running heavily discriminated. Five inch? Eight inch? 4x6"? Anybody with an F5 or near equivalent would respond would be appreciated.

Other forum topic suggested eight inch but am hearing a lot of disdain for those as well. Thanks in advance

 

[ohiochris]

Go much smaller with the coil size in trashy ground. This is true with just about any detector.

 

[DIGGER27]

I would recommend this one.
I hunt very trashy areas and once I put my 4" coil on my F2 the sky was the limit pertaining to quality finds and the volume of those finds.
Not to mention the shocking amount of clad I found at sites I had thought I had cleaned up well with my larger coils.
I use sniper coils 98% of the time on all my dtectors nowadays.

Small enough to get in between the trash and isolate most signals, handles masking very well but you should still dig stuff to get it out of the way because you never know.

I prefer the concentrics because my soil is good and they handle and can ID those stupid high tone bottle caps way better than the DD coils.

 

[RonStar]

Ok, next portion of question is learning. Is there that much difference in performance between the factory coil and aftermarket makers? The old park i recently started hunting gave up a 36 merc and two 50s rosies and some wheats. There just has to be quarters etc in there. Thats what i am trying to weed out cuz i am rich in bottle caps.....

 

[DIGGER27]

Ok, next portion of question is learning. Is there that much difference in performance between the factory coil and aftermarket makers? The old park i recently started hunting gave up a 36 merc and two 50s rosies and some wheats. There just has to be quarters etc in there. Thats what i am trying to weed out cuz i am rich in bottle caps.....

I am not sure if many make smaller coils aftermarket like they do with the bigger coils.
Stay away from DD coils because they tend to make bottle caps act pretty much like high end coins.
I don't really search for old coins, jewelry is my thing, but you would use the sniper in the same sort of trashy sites to find coin targets just the same as I use it to find hidden and masked jewelry.

This is a hunt I had in march in a park that was pretty old and I am pretty sure had never been hunted because of the shear volume of high tone signals I got.

A very large portion of those were those large screw on caps and also many, many pop tops...a ton, actually.
Lots of this trash was very close, within a few inches down to an inch apart and sometimes even closer.
I dug several of these pop tops and large screw on caps at the beginning, but because the sniper coil could isolate each signal and I learned the numbers for this type of trash which was slightly different than copper pennies and dimes I was able to avoid digging them with a great amount of confidence pretty quickly.
Still checked myself to make sure from time to time but they were always trash.

I ended up getting some gold out of the deal along with a lot of clad.
http://metaldetectingforum.com/showthread.php?t=146678

 

[RonStar]

I know what you mean about the big coil and bottle caps. It registers as 50/silver and i dig. Two coins together will signal same as does 925 rings as well. Can anyone tell me if smaller coil still signals caps as silver?

I know pre 83 pennies signal as dimes and most pull tabs signal as nickels. Guess i get the smaller coil and adjust to the learning curve.

 

[stinger]

Got A 8X6 SEF COIL ON MY MXT PRO GOOD ON TRASH

 

[trash2find]

GREAT info!!!!!