Hi Ray,
You can turn your iron discrimination up to 35 to eliminate small iron. Most gold will be between 40-70, the lower numbers are generally smaller women's thin gold bands or small pendants, earrings, etc. The bigger the gold, the higher the potential number. Silver rings will generally ring in the 80s. Nickels and some pull tabs are around 52-53. I always recommend digging all repeatable numbers from 40 up if you want to get gold jewelry.
Here are some air test numbers to get you started:
99 -- Ike Silver Dollar, Morgan Silver Dollar98 -- Ike Silver Dollar
97 -- Ike Silver Dollar
96 -- Morgan Silver Dollar, Walking Liberty Silver Half Dollar, Franklin Silver Half Dollar, Large Silver Ring
95 --
94 --
93 -- Kennedy 40% Silver Half Dollar
92 -- Clad Dollar, Kennedy 40% Silver Half Dollar, Clad Half Dollar, Aluminum Token, Large Silver Ring
91 -- Barber Half Dollar
90 -- Clad Half Dollar, Clad Quarter, Large US 1 Cent, Silver British Half Crown
89 -- Washington Silver Quarter, Clad Quarter
88 -- Standing Liberty Silver Quarter, Washington Silver Quarter, Clad Quarter, Medium Silver Ring
87 -- SBA Dollar, Clad Quarter
86 -- Clad Quarter
85 -- Barber Quarter, Clad Quarter, Seated Dime, Matron Head Large Cent
84 -- Seated Dime, Matron Head Large Cent, Small Silver Ring
83 -- Mercury Silver Dime, Roosevelt Silver Dime, Clad Dime
82 -- Clad Dime, Small Silver Charm, 1 Yen Coin (JPN), Large 9K Gold Ring
81 -- Seated Dime, 10 Yen Coin (JPN), 1 Yen Coin (JPN)
80 -- Seated Dime, Copper Lincoln 1 Cent, King George Half Penny, 10 Yen Coin (JPN), 1000 Peso Coin (Mexico, 1988), Large Plated Ring, Small Silver Ring
79 -- Seated Dime
78 -- King George Penny, Chuck-E-Cheese Token
77 -- 1 Euro Coin (Ireland), New Zealand $2.00, Australian $1.00
76 -- Seated Liberty Half Dime, Indian Head 1 Cent, Australian $2.00, New Zealand $1.00, King George Half Penny, 5 Yen Coin (JPN), Medium Plated Ring
75 -- Bottle Cap, Spanish 1-Reale, Zinc Lincoln 1 Cent, 5 Yen Coin (JPN) Barber Dime
74 -- Bottle Cap, Rev War British Musket Ball, Copper Lincoln 1 Cent
73 -- Bottle Cap, Small Silver Ring
72 -- Bottle Cap
71 -- Bottle Cap
70 -- Bottle Cap, Civil War Mini-Ball, Medium Charm
69 -- Civil War Mini-Ball
68 -- 22K Gold Sovereign, Civil War Mini-Ball
67 --
66 -- Pop Top, Small Charm
65 --
64 --
63 -- Small Silver Earring
62 -- Nickel
61 -- Indian Head 1 Cent
60 -- Medium 9K Gold Ring
59 --
58 -- 18K Gold
57 -- Large 14K Gold Ring, 18K Gold
56 --
55 -- Mens Titanium Ring
54 -- Small 14K Gold Ring
53 -- Pull Tab, Buffalo Nickel, V Nickel, War Nickel, New Nickel, Small Charm, Medium 13K Gold Ring
52 -- Pull Tab, Buffalo Nickel, V Nickel, War Nickel, New Nickel, Small Charm
51 -- 100 Yen Coin (JPN)
50 -- 3 Cent Piece, 14K Gold Chain, 100 Yen Coin (JPN), 50 Yen Coin (JPN), Small 9K Gold Ring, Platinum Ring
49 -- 3 Cent Piece, 14K Gold Chain, 50 Yen Coin (JPN),
48 -- 14K Gold Chain, 14K Yellow & White Gold Ring, Titanium Ring, Platinum Ring
47 -- Large Junk Earring, Titanium Ring, Platinum Ring
46 -- Titanium Ring, Platinum Ring
45 -- Foil, Titanium Ring, Platinum Ring
44 -- Foil, Platinum Ring
43 -- Foil, Small 10K Gold Ring
42 -- Foil, Small 10K Gold Ring
41 -- Foil
40 -- Foil
39 -- Foil
38 -- Foil
37 -- Foil
36 -- Foil
35 -- Foil, Nail
Wayne
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