I made a decision this evening to go ahead and purchase the 12x10 SEF Coil. My hunting partner who uses one has consistently picked up more silver than I have in the past few weeks including several rings and pre-64 dimes. Maybe this is just being in the right spot and my luck will not improve with the new coil, but I do like the way it looks!!! The standard 10" slimline coil is sort of lackluster in the looks department and I get depressed looking at it.
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12x10 SEF Coil On The Way
- Thread starter lloyd0161
- Start date
exploregon
Member
I just bought one myself from a user here. The first time out with it will be tomorrow at a group "outing". I'm very excited to get out with it after reading all the good results from so many different users. Yesterday I bought the 11" pro coil (got a deal off ebay for $110 shipped). When that one arrives I'm putting all three coils head-to-head testing each over the same area starting with the X2 stock coil, the Pro 11", then the 12 x 10 SEF. Should be fun if I can get to a site that will be good testing grounds.
It'll be fun hearing of and seeing your results. Please keep us updated with your finds!
It'll be fun hearing of and seeing your results. Please keep us updated with your finds!
dirt doctor
Well-known member
I recently acquired the 12x10 SEF coil and all of a sudden my "luck" in finding silver coins has improved . I also have the 6X8 which is real nice in cutting through the trash .
MNCoinhunter
Active member
10X12 is my main coil ... it's a killer on dimes . . you'll love it ! 
scott (wi)
New member
I had been using the 15" WOT as a fill-in for my failed stock coil, then Bryce led me to the 10x12 SEF and since then the WOT hasn't seen much service. I feel more manly using the WOT but I can't argue with results of the SEF. Someday I may regain my manhood again but not today
Coilfisher
New member
Bryce-IL said:in IL
You must obtain a special permit in order to use it in this state...seriously!...and unfortunately permits are no longer available
I got the last one a few years ago sooooooooooo...enjoy your new coil...but stay out of IL.
Are you serious Bryce???
Bryce-IL said:NO I'm not serious!
I was being sarcastic and funny.
That's how good I feel the 10 x 12 is. I don't want another in IL other than mine.
Well, after seeing your post I talked the State of Michigan into issuing me the only SEF 12x10 Coil Permit (Permit # XYZ123) for our state!!!!!! So we are even, you stay on your turf and I will stay on mine
Critterhunter
New member
I'll chime in and say I agree. The 12x10 has done WONDERS for my Minelab too. It's like getting a whole new detector in certain ways. The left/right seperation blows my mind it's so laser like. Tip: While the center is excellent at that, wiggle the last 2 or 3" of the tip at what you suspect is two targets and watch it work it's magic. It's even more "laser like" near the tips. The stability is outstanding. It allows higher sensitivity settings at the same sites than my stock coil. It's smooth as butter with less falsing too. Part of the reason for that is that I believe this coil has a less "fuzzy" field than a conventional round DD coil, so it's riding on and seeing less "ground stew". I believe that's one of the keys, besides it just being a larger coil, to it achieving better depths. Targets at depth are being less "washed out" by the ground matrix since it's soaking in less of it IMHO. I also find it's made the audio more "crisp" and sharp for me. Not only all that, but it seems to hit on coins on edge harder and is more sensitive to smaller targets like earing backings and such. It's with out a doubt the best coil I ever used, DD or concentric. Now I just want to get my hands on the 13" Ultimate and see how they compare head to head, because I hear that coil has some unique abilities of it's own also not seen on a "conventional" round DD coil.Critterhunter
New member
exploregon said:
Please post your findings on this head to head! I love to read field tests like this on coils with undug targets and such in the field. That's one of the reasons why I enjoy Bryce's coil field reports so much as it gives me a good feel of just what certain coils may be capable of versus others.
One way to compare them is to lay poker chips on all targets you find before digging them and then re-test all those same marked spots with the other coils. Number your poker chips and then record the # and the response from various angles with each coil so the comparisons are fresh in your mind as they are put on paper. Only problem with that is that you still need to grid the area with each new coil to see if it finds other targets the other coils missed and mark those as well. Then re-check with the first coils that didn't find them to see if they can't or you just missed them by accident when using the other coils the first time. Once all that is done and all targets have been marked/cross checked, dig'em up and record what each target was and whether it was deep, masked, or on edge.
I just love to read field tests like this myself and always like it when they are done in extensive detail on undug targets to judge the various performance factors. Another method is to grid a small area with one coil, digging "good" targets, and then re-gridding with the other coils. It's still a pretty decent way to judge what one might do better than another based on what each coil found, but how do you know the second or third coil wouldn't have also found those targets you dug with the first one, or that you simply missed swinging over a target with the first coil that one of the others found? That's why when they are all used to grid an area and targets marked, and then each coil is used to re-check those marked targets, I feel you really see just how they compare to each other.
I can tell you this one other thing about the 12x10. In my tests of it against my 10" stock coil I tested both over a buried silver dime. With the 12x10 on I kept lowering my sensitivity level until I could just barely still get an ID and hit out of the dime with the lowest possible sensitivity setting. I then didn't touch the sensitivity setting and put the 10" stock coil on. The stock coil could NOT hear the dime, let alone get a ID out of it, while the 12x10 did. I even switched back to the 12x10 without touching the sensitivity still to see if this was a fluke, but once again the 12x10 could easily see the dime. That tells me that even with the same sensitivity setting the 12x10 is deeper, and since the 12x10 allows me to run higher sensitivity settings than the stock coil at the same exact sites, by that virtue alone I know it's also getting deeper, not to mention just the shear bigger size of the 12x10 than a round 10" coil that also should give you more depth. I can't say it enough, I love this coil!
Well, I have the new SEF coil and went out for a couple hours after work. I did not find anything old but did find clad dimes and copper Lincolns at extreme depth, amazing. After this, we have decided to move on to another area. We did find where the local kids were drinking and crushing beer cans into false quarters. These are easily distinguished however by raising the coil as high as possible and I only dug one to test the coil. All in all I believe this coil is an improvement. I like the way it swings and it covers more ground. Good signals came through loud and clear and pinpointing was a snap. My stock coils (10" slimline and 7-1/2" Explorer 800) are on Craigslist. I generally stick with one good coil and money is tight right now. I am hoping to cover the cost of the SEF with the other two coils. At least that was the deal I made with my wife who is the household bookkeeper
Critterhunter
New member
You'll find that this coil somewhat eliminates the need for a somewhat smaller coil because it's left/right separation is simply outstanding. Of course length wise separation is still an issue where a smaller coil will shine. I use the 5" (Actually 5.5") Sun Ray coil when I really want to sniff through some heavy trash extensively, but the 12x10 just blows my mind in it's ability to separate width wise. Wiggle the last 2 or 3" at a target and that amazing left/right laser like separation gets even more scalpel like. I'm confident that if I grid a spot from two directions with this coil, so that masking length wise of the coil is less of an issue, not much is left to find. That's not to say a tiny coil won't find still more masked targets, but I am saying that the 12x10 in my opinion will unmask stuff that even somewhat smaller coils haven't for me. The compressed width of it's DD detection line is that good. It's depth and stability are also something to behold as well. My 10" stock coil stays on my water shaft, and I only do that so I don't have to switch coils when going water hunting. If I had another 12x10 to put on my water rig I'd sell off my 10" coil.
deeponedge
New member
I think you made a good choice bud.