Callaway Big Bertha vs Callaway Big Bertha B21
Side-by-side factory specifications. Differing values are highlighted.
Specification comparison
| Club | Big Bertha loft | Big Bertha B21 loft | Big Bertha lie | Big Bertha B21 lie | Big Bertha length | Big Bertha B21 length |
|---|---|---|---|---|---|---|
| 1 | 16 | — | 58.5 | — | 40 | — |
| 2 | 18.5 | — | 59.2 | — | 39.5 | — |
| 3 | 21 | — | 59.9 | — | 39 | — |
| 4 | 23.5 | 19 | 60.6 | 60.5 | 38.5 | 38.75 |
| 5 | 26 | 22 | 61.3 | 61.3 | 38 | 38.125 |
| 6 | 29 | 25 | 62 | 62 | 37.5 | 37.5 |
| 7 | 33 | 29 | 62.5 | 62.5 | 37 | 37 |
| 8 | 37.5 | 33 | 63.5 | 63 | 36.5 | 36.5 |
| 9 | 42 | 38 | 64.5 | 63.5 | 36 | 36 |
| PW | 46.5 | 43 | 65 | 64 | 35.5 | 35.75 |
| AW | 50.8 | 48 | 65 | 64 | 35.5 | 35.5 |
| SW | 55 | 54 | 65 | 64 | 35.5 | 35.25 |
| LW | 60 | 60 | 65 | 64 | 35.5 | 35 |
Highlighted cells differ between the two sets. Lofts and lies are factory standard.
Lofts compared
- Big Bertha
- Big Bertha B21
What the differences mean
At the 7-iron, the Big Bertha is 33° and the Big Bertha B21 is 29°, a 4° gap. Each degree of loft is worth roughly 3 to 4 yards of carry at the same swing speed, so the Big Bertha B21 should carry roughly 12 to 16 yards further with that club, on a slightly lower, shallower flight than the Big Bertha. Across the 10 clubs both sets share, the Big Bertha B21 averages 3.2° stronger, with the largest gap at the 4-iron (23.5° vs 19°). The pitching wedges are 46.5° and 43°; the stronger one leaves a 7° jump to a 50° gap wedge, which matters when planning wedge gapping.
The sets are built differently: the Big Bertha runs 1-iron to LW (13 clubs), the Big Bertha B21 4-iron to LW (10 clubs).
The Big Bertha is a game improvement iron and the Big Bertha B21 a super 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 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 is listed as investment cast and the Big Bertha B21 as cast with an A.I.-designed Flash Face Cup. The Big Bertha B21 adds tungsten weighting, which lowers the centre of gravity and raises stability on mis-hits, helping the long irons launch.
There are 26 years between these sets (1994 and 2020), 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 33° to 29°.
Which should you choose?
The Big Bertha B21 is the stronger-lofted set — up to 4.5° stronger than the Big Bertha 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 specs and Callaway Big Bertha B21 specs.
Frequently asked questions
Is the Callaway Big Bertha stronger lofted than the Big Bertha B21?
No. The Big Bertha B21 is the stronger-lofted set: its 7-iron is 29° against 33° for the Callaway Big Bertha, 4° stronger and worth roughly 12 to 16 yards of extra carry.
What is the loft difference between the Callaway Big Bertha and Big Bertha B21?
At the 7-iron the difference is 4° (33° vs 29°). The largest gap on a shared club is 4.5° at the 4-iron, and 9 of the 10 shared clubs differ.
Which is better for higher handicap golfers, the Callaway Big Bertha or the Big Bertha B21?
The 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 Callaway Big Bertha is a game improvement iron, better suited to roughly 10 to 25 handicaps.
Do the Callaway Big Bertha and Big Bertha B21 have the same lie and length?
At the 7-iron, yes: both are 62.5° lie and 37 inches long.
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