70 or 705 for nuggets?

[BeachBumm]

Considering an X-Terra for just nugget shooting. I understand there is a coil that runs > a frequency of 18. And I have read that there is motion AM mode and a prospecting mode. My question is, if I am buying it for only this purpose, does the 705 have any significant advantage over the 70 to justify the cost difference? Any advice/info would be sincerely appreciated!

Thanks, Mark

 

[David]

I have the 70. Yes get the 705 over the 70 because of the 705's Off-Set Tracking(in Prospecting Mode, Iron Mask-IM set at 1, higher for more iron junk) as it is better for hot-rocks I read. Also better for tracking on hot ground. If you still get too many hot-rocks(and hot ground) then run it in Coin & Treasure Mode(has less depth) in All Metal-AM instead. If you see the hot-rocks show up as -8 and/or +48 then eliminate these numbers in a custom pattern.

There is the round 6" HF DD, 5x10" HF DD and the round 10.5" HF DD for gold nuggets. If you want to find nuggets of about -1 gram and smaller the 6" and 5x10" will go deeper, but if you want to find nuggets about bigger than +1 gram get the 10.5" as will go deeper on these sizes.

Having said all that you may also want to get a used second-hand Minelab SD-2100(Pulse Induction and were about $1200 brand new before they were discontinued) for about $800 to $1000 for gold nuggets. It is much heavier and bulkier with a very heavy battery and has very poor discrimination. But it is deeper on bigger gold and handles hot-rocks & bad ground better than the 705. But then again the 705 will find smaller sub-gram gold sizes and fine gold specimens better. Also there is the Garrett Infinium LS and Whites TDI Pro to look at.

 

["Dr.Tones"]

I have the 70 and have found sub grain sized gold with it. Very sensitive with the 6" 18.75khz coil.