Is it REALLY that deep?

As we are now getting reports in of "deep" nuggets of varying sizes coming through, let's ponder this:

Most folks have a degree of difficulty pinpointing any nugget once they have to place the coil in the hole to pinpoint.
The problem arises due to the coil being overloaded or "flooded". This is more of a problem on large nuggets.
Unless you are using a good, dedicated pinpointer, you don't have much chance of telling where a nugget is with any degree of accuracy.

The point I want to make is this.

Are we sure that beauty wasn't in the wall of the hole at a higher point than the bottom of the hole when we finally got it out?
Perhaps some of our depth measurements may be a bit out unless we actually saw the nugget undisturbed in the bottom of the hole.

Just mulling it over in my head

Robert

Good to remind people of this Robert, and with the near coil double blip signal of the 7K, pinpointing is made even harder. It would be so easy to dig down beside a target leaving it in the wall.

I found this happened a lot with the GPX on iron, especially with one particular coil, iron would pinpoint to the upper right corner of the coil.
It even got to the point that if I dug off centre, and the target was in the upper right hand wall I could usually be 99% sure it was iron.

Anyway that's off topic. Video evidence so we can scrutinize the digging would be more conclusive.

Cheers

hi goldnomad - i used to have trouble pinpointing with big coils, and yes i got a few in the wall "that were unbelievely deep"
now after fourteen years i have settled on a system that pinpoints accurately all the time.

every utube vid i have ever watched by fellas putting up their vid of finds has NOT used this method.

simple and proven by minelab since i started detecting in 2000. curious?
look at page 52 of the new instructions for the Zed.

no surprises, must have something to do about - excitement or confidence (to be kind) ... kev

Hi All,
A little trick for big noises and big coils is to switch to "Cancel" on the front panel (GPX models & mono coils) where you need to very very close to the target to get a response, this saves both time and effort digging.
You may need to switch back and forward until you get a response from the "cancel" mode, but it should stop you from digging past the target.
Cheers
Mark

Since I have had the 2300 we have been using that to pin point once a dig has started.

Pinpointers,will always be a more precise and accurate way,of pinpointing deeply buried targets in holes,than what larger coils can ever do,unless the holes are opened up,or expanded in size to allow the swing of a large coil,flat over the target from side to side.
As for depth measurements Rob,the only true indicator of actual depth to target distance,is to carry a small cm tape measure,handy in ones back pack, like I do. This eye-balling business of "the target was found at 2,possibly 3 feet" deep,has to stop. Stop because of its illusion type inaccuracy.Unless properly measured and as you'v said, "the target first seen/found to be sitting,at such a place and depth",one will never have a true indication of "how deep the target was from the actual surface,by finding the target tossed out on the mullock heap.

Cheers Kon.

We have 'notched' our pick handles at 1cm increments.
Works for us.

Kev,

Yes, that method has been around for years and works well but is really not the best method for pinpointing targets in the wall IMHO.

Mark,

This is also a good tool but the target has got to be rather large in my experience for it to work.

Kon,

The best pinpointer I have used is the Coiltek one. It is a true PI unit and requires ground balancing to work properly. Mind you, it is only good if you come to within about an inch of the target.

Redfin,,

Yes, we too have our picks marked every 5cm and have yellow "barbers' pole" paint on them just in case we forget to pick them up. Yup, I'm guilty of it

This is what we now do to pinpoint.

We use Detech's 15"x9" mono but any elliptical coil should work.
I switch it to "Cancel" then upend the coil so as the back is facing down.
I can then use it in my hand or if the hole is too deep I just pull it back against the shaft.
This method has worked on many occasions for us.

It doesn't always need to be in cancel to work well. It's excellent for pinpointing a target in the pile you've dug out too.

If you're using an elliptical coil, give it a try.

Robert