Mizuno JPX-921 Hot Metal Pro vs Mizuno JPX-923 Hot Metal Pro
Side-by-side factory specifications. Differing values are highlighted.
Mizuno JPX-921 Hot Metal Proinvestment cast · Nickel Chromoly 4335Mizuno JPX-923 Hot Metal Proinvestment cast · Nickel Chromoly 4335
Specification comparison
| Club | JPX-921 Hot Metal Pro loft | JPX-923 Hot Metal Pro loft | JPX-921 Hot Metal Pro lie | JPX-923 Hot Metal Pro lie | JPX-921 Hot Metal Pro length | JPX-923 Hot Metal Pro length |
|---|---|---|---|---|---|---|
| 4 | 19 | 19 | 60 | 60 | 38.5 | 38.5 |
| 5 | 22 | 22 | 60.5 | 60.5 | 38 | 38 |
| 6 | 25 | 25 | 61 | 61 | 37.5 | 37.5 |
| 7 | 29 | 28.5 | 61.5 | 61.5 | 37 | 37 |
| 8 | 34 | 33 | 62 | 62 | 36.5 | 36.5 |
| 9 | 39 | 37.5 | 62.5 | 62.5 | 36 | 36 |
| PW | 44 | 42.5 | 63 | 63 | 35.5 | 35.5 |
| GW | 49 | — | 63 | — | 35.25 | — |
Highlighted cells differ between the two sets. Lofts and lies are factory standard.
Which should you choose?
The JPX-923 Hot Metal Pro is the stronger-lofted set — up to 1.5° stronger than the JPX-921 Hot Metal Pro on matching clubs. Expect longer carry per numbered iron but a flatter descent angle; gapping at the wedge end is where that shows up.
Both charts are reproduced in full on their own pages: Mizuno JPX-921 Hot Metal Pro specs and Mizuno JPX-923 Hot Metal Pro specs.