Bridgestone J40 Dual Pocket Cavity vs Bridgestone J15 Dual Pocket Forged
Side-by-side factory specifications. Differing values are highlighted.
Specification comparison
| Club | J40 Dual Pocket Cavity loft | J15 Dual Pocket Forged loft | J40 Dual Pocket Cavity lie | J15 Dual Pocket Forged lie | J40 Dual Pocket Cavity length | J15 Dual Pocket Forged length |
|---|---|---|---|---|---|---|
| 3 | 20 | 20 | 60 | 60.5 | 38.75 | 39 |
| 4 | 23 | 22.5 | 61 | 61 | 38.25 | 38.5 |
| 5 | 26 | 25 | 62 | 61.5 | 37.75 | 38 |
| 6 | 30 | 28 | 62.5 | 62 | 37.25 | 37.5 |
| 7 | 34 | 31 | 63 | 62.5 | 36.75 | 37 |
| 8 | 38 | 35 | 63.5 | 63 | 36.25 | 36.5 |
| 9 | 42 | 40 | 64 | 63.5 | 35.75 | 36 |
| PW | 46 | 45 | 64.5 | 64 | 35.5 | 35.75 |
Highlighted cells differ between the two sets. Lofts and lies are factory standard.
Lofts compared
- J40 Dual Pocket Cavity
- J15 Dual Pocket Forged
What the differences mean
At the 7-iron, the J40 Dual Pocket Cavity is 34° and the J15 Dual Pocket Forged is 31°, a 3° gap. Each degree of loft is worth roughly 3 to 4 yards of carry at the same swing speed, so the J15 Dual Pocket Forged should carry roughly 9 to 12 yards further with that club, on a slightly lower, shallower flight than the J40 Dual Pocket Cavity. Across the 8 clubs both sets share, the J15 Dual Pocket Forged averages 1.6° stronger, with the largest gap at the 7-iron (34° vs 31°). The pitching wedges are 46° and 45°; the stronger one leaves a 5° jump to a 50° gap wedge, which matters when planning wedge gapping. Beyond loft, the J15 Dual Pocket Forged 7-iron sits 0.5° flatter (63° vs 62.5°), which nudges start direction slightly right for a right-hander; the J15 Dual Pocket Forged 7-iron is 0.25 inches longer (36.75" vs 37").
Both are players irons, built for roughly scratch to 10 handicaps. Small-to-mid cavity backs with traditional lofts, modest offset and workable shaping for low-handicap players. Because they target the same golfer, the decision comes down to the specific loft, feel and shaping differences rather than who the sets are made for.
The J40 Dual Pocket Cavity is listed as forged, dual pocket cavity and the J15 Dual Pocket Forged as two-piece forged with a Turbo Rubber Design perimeter cavity. With the build method this similar, differences in feel come down to head size, sole width, topline and offset rather than how the heads are made.
There are 4 years between these sets (2011 and 2015), more than one design generation. Over that time irons moved toward stronger lofts, thinner and faster faces, hollow and multi-material heads and wider use of tungsten, so the newer set is not simply a better version of the older one: it may launch and spin quite differently. Here the 7-iron loft moved from 34° to 31°.
Which should you choose?
The J15 Dual Pocket Forged is the stronger-lofted set — up to 3° stronger than the J40 Dual Pocket Cavity 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: Bridgestone J40 Dual Pocket Cavity specs and Bridgestone J15 Dual Pocket Forged specs.
Frequently asked questions
Is the Bridgestone J40 Dual Pocket Cavity stronger lofted than the J15 Dual Pocket Forged?
No. The J15 Dual Pocket Forged is the stronger-lofted set: its 7-iron is 31° against 34° for the Bridgestone J40 Dual Pocket Cavity, 3° stronger and worth roughly 9 to 12 yards of extra carry.
What is the loft difference between the Bridgestone J40 Dual Pocket Cavity and J15 Dual Pocket Forged?
At the 7-iron the difference is 3° (34° vs 31°). The largest gap on a shared club is 3° at the 7-iron, and 7 of the 8 shared clubs differ.
Are the Bridgestone J40 Dual Pocket Cavity and J15 Dual Pocket Forged aimed at the same golfer?
Yes. Both are players irons, built for roughly scratch to 10 handicaps. Choose on feel, looks and gapping, ideally after hitting both.
Do the Bridgestone J40 Dual Pocket Cavity and J15 Dual Pocket Forged have the same lie and length?
Not exactly. At the 7-iron the Bridgestone J40 Dual Pocket Cavity is 63° lie and 36.75 inches, the J15 Dual Pocket Forged 62.5° and 37 inches. Both can be bent or built to your own fit.
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