Callaway Big Bertha B21 vs Callaway Mavrik Max
Side-by-side factory specifications. Differing values are highlighted.
Specification comparison
| Club | Big Bertha B21 loft | Mavrik Max loft | Big Bertha B21 lie | Mavrik Max lie | Big Bertha B21 length | Mavrik Max length |
|---|---|---|---|---|---|---|
| 4 | 19 | 20 | 60.5 | 60.5 | 38.75 | 39 |
| 5 | 22 | 23 | 61.3 | 61.3 | 38.125 | 38.375 |
| 6 | 25 | 26 | 62 | 62 | 37.5 | 37.75 |
| 7 | 29 | 30 | 62.5 | 62.5 | 37 | 37.125 |
| 8 | 33 | 34 | 63 | 63 | 36.5 | 36.5 |
| 9 | 38 | 38 | 63.5 | 63.5 | 36 | 36 |
| PW | 43 | 43 | 64 | 64 | 35.75 | 35.75 |
| AW | 48 | 48 | 64 | 64 | 35.5 | 35.5 |
| SW | 54 | 54 | 64 | 64 | 35.25 | 35.25 |
| LW | 60 | — | 64 | — | 35 | — |
Highlighted cells differ between the two sets. Lofts and lies are factory standard.
Lofts compared
- Big Bertha B21
- Mavrik Max
What the differences mean
At the 7-iron, the Big Bertha B21 is 29° and the Mavrik Max is 30°, a 1° 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 3 to 4 yards further with that club, on a slightly lower, shallower flight than the Mavrik Max. Across the 9 clubs both sets share, the Mavrik Max averages 0.6° weaker, with the largest gap at the 4-iron (19° vs 20°). Beyond loft, the Mavrik Max 7-iron is 0.12 inches longer (37" vs 37.125").
The sets are built differently: the Big Bertha B21 runs 4-iron to LW (10 clubs), the Mavrik Max 4-iron to SW (9 clubs).
Both are super game improvement irons, built for high handicaps, beginners and slower swing speeds. The most forgiving category — very wide soles, maximum perimeter weighting and the strongest lofts. 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 Big Bertha B21 is listed as cast with an A.I.-designed Flash Face Cup and the Mavrik Max as investment cast, multi-material. The Big Bertha B21 adds tungsten weighting, which lowers the centre of gravity and raises stability on mis-hits, helping the long irons launch.
Both sets were introduced in 2020, so this is a choice between two models from the same lineup rather than an upgrade: Callaway designed them to sit side by side for different players.
Which should you choose?
The Mavrik Max is the weaker-lofted set — up to 1° weaker than the Big Bertha B21. That trades raw distance for a steeper landing angle and more predictable stopping power into greens.
Both charts are reproduced in full on their own pages: Callaway Big Bertha B21 specs and Callaway Mavrik Max specs.
Frequently asked questions
Is the Callaway Big Bertha B21 stronger lofted than the Mavrik Max?
Yes. The Callaway Big Bertha B21 7-iron is 29° against 30° for the Mavrik Max, 1° stronger, which is worth roughly 3 to 4 yards of extra carry with the same swing.
What is the loft difference between the Callaway Big Bertha B21 and Mavrik Max?
At the 7-iron the difference is 1° (29° vs 30°). The largest gap on a shared club is 1° at the 4-iron, and 5 of the 9 shared clubs differ.
Are the Callaway Big Bertha B21 and Mavrik Max aimed at the same golfer?
Yes. Both are super game improvement irons, built for high handicaps, beginners and slower swing speeds. Choose on feel, looks and gapping, ideally after hitting both.
Do the Callaway Big Bertha B21 and Mavrik Max have the same lie and length?
Not exactly. At the 7-iron the Callaway Big Bertha B21 is 62.5° lie and 37 inches, the Mavrik Max 62.5° and 37.125 inches. Both can be bent or built to your own fit.
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