Mizuno · Iron set · 2022 · Previous model

Mizuno JPX923 Hot Metal irons

Game improvement, 3.5 of 5 for forgiveness

Mizuno's game improvement iron of 2022, with 5.0 mm of offset at the 7-iron and a 28.5° 7-iron; its one-piece nickel chromoly head has a thin cup face. Mizuno no longer sells the JPX923 Hot Metal new, and the JPX925 Hot Metal replaced it.

Side view to scale: 5.0 mm offset

3.5 of 5 forgiveness score

$699.98 at PGA TOUR Superstore7 irons (5-PW, GW) · checked 11 Oct

Used from $519.99 at 2nd Swing Golf7 clubs (5-PW, GW), graphite, regular flex, poor condition · checked 31 Oct

In average condition or better: from $562.995 clubs (6-PW), steel, regular flex, average condition · checked 31 Oct

New instead: Mizuno JPX925 Hot Metal, $962.50 at Mizuno, 7 irons, checked 2 Nov

Choose it if

  • You make decent contact and want help on the misses from a slimmer head.
  • Your iron shots start right or fly low: 5.0 mm of offset gives the face more time to square.
  • You play left-handed: it was made left-handed.
  • You want to spend less: $699.98 is in the cheapest third of the 43 we price.

Choose something else if

  • For more help on thin and heavy strikes, look at the JPX925 Hot Metal HL, with its wider head and weaker lofts.
Class
Game improvement
7-iron loft
28.5°Every club's loft, lie and length
Offset (7-iron)
5.0 mm
Sole
22.8 mm at the 7-iron
Hands
Left or right
Price
$699.98 at PGA TOUR Superstore, 7 irons (5-PW, GW), checked 11 Oct

What changed in the JPX925 Hot Metal

Both are Mizuno's forgiving speed cavity for mid to high handicaps, with the same head length. The JPX925 Hot Metal is half a degree stronger from the 7-iron to the pitching wedge (a 28° 7-iron against 28.5°; the 48° gap wedge and 54° sand wedge are unchanged), a quarter inch longer from the 4-iron to the gap wedge, more upright (half a degree from the 4-iron to the pitching wedge, a full degree in the gap and sand wedges), and has slightly less offset (4.8 mm at the 7-iron against 5.0 mm). Mizuno also rebuilt the face, and sells the 925 from the 4-iron to the sand wedge, where the 923 went down to a lob wedge.

Mizuno no longer lists the JPX923 Hot Metal, but PGA TOUR Superstore still has new sets for far less than a JPX925, and used sets cost less again. Choose the JPX925 for the newer face and the longer, more upright fit.

The Mizuno JPX923 Hot Metal and the JPX925 Hot Metal that replaced it: specifications as Mizuno publishes them, prices as the shops showed them
Detail JPX923 Hot Metal (previous) JPX925 Hot Metal (current)
ClassGame improvementGame improvement
Forgiveness score3.5 of 53.5 of 5
7-iron loft28.5°28°
Offset at the 7-iron5.0 mm4.8 mm
Sole22.8 mm at the 7-iron22.9 mm at the 7-iron
Stock flexesNot publishedRegular or stiff
HandsLeft or rightLeft or right
Price new$699.98 at PGA TOUR Superstore, 7 irons (5-PW, GW), checked 11 Oct$962.50 at Mizuno, 7 irons, checked 2 Nov
Price usedFrom $519.99 at 2nd Swing Golf (7 clubs (5-PW, GW), graphite, regular flex, poor condition), checked 31 OctFrom $574.99 at 2nd Swing Golf (5 clubs (7-PW, GW), steel, regular flex, average condition), checked 31 Oct

Head to head: Mizuno JPX923 vs JPX925 Hot Metal irons · Mizuno JPX923 Forged vs Hot Metal irons

Loft, lie and length, club by club

As Mizuno published them
Club Loft Lie Length Offset Sole width
4-iron 19° 60° 38.5 in 0.233 in 24.2 mm
5-iron 22° 60.5° 38 in 0.22 in 23.7 mm
6-iron 25° 61° 37.5 in 0.208 in 23.3 mm
7-iron 28.5° 61.5° 37 in 0.196 in 22.8 mm
8-iron 33° 62° 36.5 in 0.18 in 20.7 mm
9-iron 37.5° 62.5° 36 in 0.159 in 19.3 mm
PW 42.5° 63° 35.5 in 0.135 in 18.4 mm
GW 48° 63° 35.25 in 0.098 in –
SW 54° 63° 35.25 in 0.082 in –
LW 60° 63° 35.25 in 0.065 in –

After the gap wedge (GW, 48°): with a 56° sand wedge, the 8° gap leaves room for one more wedge, at about 52°.

Callaway's iron fitting guide puts your first wedge 4° to 6° above the highest-lofted wedge in your iron set. A gap in degrees is not a gap in yards. To choose that wedge, see the forgiving wedges by loft and bounce.

Use the iron finder to compare sets for your usual miss, and check the set makeup and loft gaps before ordering. Between a game improvement and a super game improvement head, this is how to tell which one your strike needs.

JPX923 Hot Metal: the questions buyers ask

Is the Mizuno JPX923 Hot Metal forgiving?
Moderately. It is Mizuno's game improvement iron, with 5.0 mm of offset at the 7-iron and a 28.5° 7-iron. It scores 3.5 of 5 on our reading of what Mizuno publishes about it; the most forgiving iron sets we cover score 5.0.
Who is the JPX923 Hot Metal for?
It suits golfers who make decent contact and want help on the misses with a slimmer head. Mizuno aims it at mid to high handicaps.
Is the JPX923 Hot Metal sold left-handed?
Yes: Mizuno made it left- and right-handed.
What are the JPX923 Hot Metal lofts?
4-iron 19°, 5-iron 22°, 6-iron 25°, 7-iron 28.5°, 8-iron 33°, 9-iron 37.5°, PW 42.5°, GW 48°, SW 54°, LW 60°, as Mizuno published them. The full table with lie, length and offset is above.
How much does the JPX923 Hot Metal cost?
$699.98 at PGA TOUR Superstore, 7 irons (5-PW, GW), checked 11 Oct. Used from $519.99 at 2nd Swing Golf, checked 31 Oct. In average condition or better, from $562.99. Prices change; the seller's page has today's.

How the 3.5 adds up

The forgiveness score is our reading of what Mizuno publishes about the head, from 1 to 5. It is not a test result. How every score works.

The parts of the forgiveness score
PartPointsWhy
Head class 3 Game improvement: a forgiving head, slimmer than super game improvement.
Offset +0.5 5.0 mm at the 7-iron, at or above our 4.5 mm mark.
Sole +0 Mizuno describes the sole ("22.8 mm across at the 7-iron") but not as wide.
Forgiveness score3.5of 5

The score rates the head only. Hand, flex and price decide which version you buy, not how forgiving it is. Mizuno does not publish the set makeup. Its shafts and flexes are custom-order options, with no stock shaft named.

Specification sheet

As Mizuno published it, apart from who it suits, which is our reading; a dash means the maker did not state it.
MakerMizuno
ModelJPX923 Hot Metal
Model year2022
TypeIron set
ClassGame improvement
Who it suits (our reading)Mid handicappers, high handicappers
Handicap range the maker statesMID to HIGH HCP
Offset0.196" at the 7-iron (progressive: 0.233" in the 4-iron down to 0.135" in the PW and 0.065" in the LW)
Sole22.8 mm across at the 7-iron (24.2 mm in the 4-iron to 18.4 mm in the PW)
Moment of inertia (MOI)–
Face technology4335 Nickel Chromoly (35% stronger than the original Chromoly) for an 8% thinner clubface; Seamless cup face construction; V-Chassis
ConstructionOne piece of nickel chromoly steel with a thin cup face for a deep centre of gravity, and a V-shaped frame behind the face for a more solid feel.
Set makeup–
Clubs in the set–
Stock steel shafts–
Stock graphite shafts–
Stock flexes–
Custom shafts30 custom-order shafts in steel and graphite, from UST Mamiya Recoil ESX lightweight graphite to X-flex steel (KBS Tour Lite and True Temper Dynamic Gold 95 among them), some at an extra charge; Mizuno names no stock shaft
7-iron loft28.5°
HandsRH, LH
Men's or women's–
List price (MSRP)not published
Price at PGA TOUR Superstore$699.98 · checked 11 Oct
What the price buysSteel: True Temper DG 95 Regular or KBS Tour Lite Stiff shafts, 5-PW, GW (7-Club Set), Right or Left Hand
Price for 7 clubs$699.98 · at PGA TOUR Superstore, checked 11 Oct

Compare with other game improvement irons

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Other game improvement irons
Sole Hand Where to buy
4.0 Game improvement 29° 5.0 mm Slightly wider A · R · S RH · LH $599.99 at Tour Edge 7 irons · checked 2 Nov
See it at Tour Edge Check price on Amazon Amazon's price may differ
3.5 Game improvement 29° not published Wider L · A · R · S RH · LH $559.99 at Tour Edge 7 irons · checked 2 Nov
See it at Tour Edge Check price on Amazon Amazon's price may differ
3.5 Game improvement 29° 4.6 mm not published A · R · S · X RH · LH $999 at Golf Discount 7 irons (4-PW) · checked 2 Nov
3.5 Game improvement 31° 4.3 mm Wider L · A · R · S RH · LH $1,099.99 at TaylorMade 7 irons · checked 2 Nov
See it at TaylorMade Check price on Amazon Amazon's price may differ
3.5 Game improvement 29.5° 4.6 mm not published PING's own lightweight flexes: Ultra Lite or Lite RH · LH $1,299.99 at PGA TOUR Superstore 7 irons (6-9, PW, UW, SW) · checked 2 Nov
3.5 Game improvement 29.5° 3.3 mm Wider: 0.90 inches R · S · X RH · LH $699 at Haywood 7 irons · checked 2 Nov
See it at Haywood
3.5 Game improvement 28° 4.8 mm 22.9 mm at the 7-iron R · S RH · LH $962.50 at Mizuno 7 irons · checked 2 Nov
See it at Mizuno Check price on Amazon Amazon's price may differ
3.5 Game improvement 29° 4.6 mm not published not published RH · LH $1,099 at Golf Discount 7 irons at $157 each · checked 2 Nov

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Order: Forgiveness score first; on a tie, the set more golfers can buy, then a set that includes the long irons, then price. Use the arrows to sort. A dash means the maker does not publish it.

See all iron sets on the most forgiving irons page, or compare this club side by side. Waiting for a sale? The Black Friday golf club deals page has the price to beat on every club we price.

Sources

The specification comes from these pages; open the maker's page before buying, because prices and shaft options change. Check the exact shaft and hand at the shop before ordering.