How many of you can...

[Goes4ever]

Saying any coin will always read exactly the same is foolish.
Sweep speed and position can make a difference even in air tests , as well as EMI. What about the ground it's in?
I often run in ground that gives me a sensitivity in Auto+3 of 10-----do you really think a wheat in your dirt will run the same?

foolish is not properly reading my post then saying it is foolish. Re read. My post I said ALMOST ALWAYS. I did not say always for everyone. I am stating my experience with my etrac in my soil......

I was simply making a statement.
If I was commenting on your particular post I would have quoted it.[/quoteI went back and re-read the posts above yours and I was the only saying almost always, I have hunted with my etrac thousands of hours and am pretty competent on how coins come in on it

 

[sprchng]

I'm pretty competent about how they read as well and , knowing how the numbers can vary , I would stand by my statement of saying that they are always the same , is foolish. Evidently you must agree. Agree?

 

[Goes4ever]

What I agree is that when I am hunting an old yard and get a target I can normally call it out what it is when it is in coin range............so yes they are ALMOST ALWAYS THE SAME...........sure you can toss a nail close by, or a close co-adjacent target which will skew with the numbers, but NORMALLY wheats, indians, copper memorials will read the same in my area...........maybe you have difficult soil in your area. Mine is very mild and I know how coins read here. Nothing to even debate on.

Now quit worrying about my numbers so much and go dig something you can post up

 

[Nick A]

This article may interest you if you are into the more technical details of the composition of Indian Head and Wheat cents. http://www.ohiometaldetecting.com/2/post/2009/05/green-pennies.html

 

[Digger]

Yep, angle in the soil is definitely one factor. As are sweep speed, Sensitivity setting, soil conditions, coil design, adjacent targets, depth of target, condition of the target, RFI etc. Too many variables to never say never..... or to always say always. Frankly, if it sounds good, I'm digging it! JMHO HH Randy

 

[Digger]

Thanks. Very interesting read.

 

[Elton]

Quote digger.." Frankly, if it sounds good, I'm digging it! " JMHO HH Randy

Me too....... but like Goes says..in our soil it's always pretty close or dead on mostly.

 

[moonshine]

OP: In general yes, but all the time? No. I'd say I find wheats anywhere from 12-38 to 12-43, and memorials about 12-41 to 12-44. theres also a matter of "site experience" invloved in guessing. Predicting what the coin is influenced by what youve found at the site already. If youve found ten memorials at 4" and they read 12-42, and you get a next hit of 12-42 at 4" or so, what do you think its going to be. It might be a 40's or 50's wheat or it might be a copper memorial. But its more likely to be a memorial based on what youve already dug up. I dont know if its my detector or the sites I hunt, but I dont normally get super-consistent numbers for copper coins. I like digging, not predicting. I dont really care what the numbers say, if Im getting a good tone its like getting a nibble when fishing - set the hook!

Now the early wheats definitely do come in lower than memorials. I have no doubts about that. I think up through the teens or 20's (or so) the exact metal composition was not the same as what was used in the memorial planchets. The etrac sees that.

I dont mean to say that I am an expert, but this is what I have observed, and these are my opinions, and Im sticking to them.

 

[Johnnyanglo]

Here's a graph of the Co values for pennies on the E-Trac at differing mint years. One line is for the penny flat (blue) and the other for the penny on-edge (red).

 

[khouse]

Love your graphs and screen shots. The graphs are everything I wanted to know but not smart enough to do. Keep them coming.

 

[ChicagoJohn]

NickA....Thanks! Johnnyanglo....Nice graphs!

 

[Jim D]

I,ve found older green wheatie,s in my soil as low as 38, most though are between 40 to 45.