Callaway Big Bertha B21 vs Callaway Big Bertha (2023)
Side-by-side factory specifications. Differing values are highlighted.
Specification comparison
| Club | Big Bertha B21 loft | Big Bertha (2023) loft | Big Bertha B21 lie | Big Bertha (2023) lie | Big Bertha B21 length | Big Bertha (2023) length |
|---|---|---|---|---|---|---|
| 4 | 19 | 18 | 60.5 | 60.5 | 38.75 | 38.75 |
| 5 | 22 | 21 | 61.3 | 61.25 | 38.125 | 38.125 |
| 6 | 25 | 24 | 62 | 62 | 37.5 | 37.5 |
| 7 | 29 | 27 | 62.5 | 62.5 | 37 | 37 |
| 8 | 33 | 31.5 | 63 | 63 | 36.5 | 36.5 |
| 9 | 38 | 36.5 | 63.5 | 63.5 | 36 | 36 |
| PW | 43 | 42 | 64 | 64 | 35.75 | 35.75 |
| AW | 48 | 47 | 64 | 64 | 35.5 | 35.5 |
| GW | — | 52 | — | 64 | — | 35.25 |
| SW | 54 | 56 | 64 | 64 | 35.25 | 35 |
| LW | 60 | — | 64 | — | 35 | — |
Highlighted cells differ between the two sets. Lofts and lies are factory standard.
Lofts compared
- Big Bertha B21
- Big Bertha (2023)
What the differences mean
At the 7-iron, the Big Bertha B21 is 29° and the Big Bertha (2023) is 27°, a 2° gap. Each degree of loft is worth roughly 3 to 4 yards of carry at the same swing speed, so the Big Bertha (2023) should carry roughly 6 to 8 yards further with that club, on a slightly lower, shallower flight than the Big Bertha B21. Across the 9 clubs both sets share, the Big Bertha (2023) averages 0.9° stronger, with the largest gap at the 7-iron (29° vs 27°). The pitching wedges are 43° and 42°; the stronger one leaves a 8° jump to a 50° gap wedge, which matters when planning wedge gapping.
The sets are built differently: the Big Bertha B21 runs 4-iron to LW (10 clubs), the Big Bertha (2023) 4-iron to SW (10 clubs).
The Big Bertha B21 is a super game improvement iron and the Big Bertha (2023) a game improvement iron, so they sit one step apart on the forgiveness scale. The Big Bertha B21 is the more forgiving design, with a wider sole, more offset and more perimeter weighting for high handicaps, beginners and slower swing speeds. The Big Bertha (2023) trades some of that for a more compact head, thinner topline and more control over flight and shape, which suits roughly 10 to 25 handicaps.
The Big Bertha B21 is listed as cast with an A.I.-designed Flash Face Cup and the Big Bertha (2023) as investment cast, multi-material. Both use tungsten weighting to lower the centre of gravity and steady the head on off-centre strikes.
The Big Bertha (2023) arrived 3 years after the Big Bertha B21, a typical one-generation refresh. Changes over that span are usually incremental: refined face thickness, revised weighting, updated looks and small loft tweaks rather than a new concept. Here the 7-iron loft moved from 29° to 27°.
Which should you choose?
The Big Bertha (2023) is the stronger-lofted set — up to 2° stronger than the Big Bertha B21 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: Callaway Big Bertha B21 specs and Callaway Big Bertha (2023) specs.
Frequently asked questions
Is the Callaway Big Bertha B21 stronger lofted than the Big Bertha (2023)?
No. The Big Bertha (2023) is the stronger-lofted set: its 7-iron is 27° against 29° for the Callaway Big Bertha B21, 2° stronger and worth roughly 6 to 8 yards of extra carry.
What is the loft difference between the Callaway Big Bertha B21 and Big Bertha (2023)?
At the 7-iron the difference is 2° (29° vs 27°). The largest gap on a shared club is 2° at the 7-iron, and all 9 shared clubs differ.
Which is better for higher handicap golfers, the Callaway Big Bertha B21 or the Big Bertha (2023)?
The Callaway Big Bertha B21. As a super game improvement iron it is the more forgiving design, suited to high handicaps, beginners and slower swing speeds. The Big Bertha (2023) is a game improvement iron, better suited to roughly 10 to 25 handicaps.
Do the Callaway Big Bertha B21 and Big Bertha (2023) have the same lie and length?
At the 7-iron, yes: both are 62.5° lie and 37 inches long.
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