Callaway iron
The Callaway Big Bertha B21 Iron Set is an iron in 10 options from 19°–60°.
Built against the iron fieldpublished figures only
Image not published
Where this club lands
The field is every iron in the database that publishes both of the chart's figures — every brand, not just Callaway.
This set's 7-iron is 29° — 19th percentile, stronger-lofted than 81% of the 889 sets that publish one. The median is 32°.
Loft ladder against the field
Loft at each club in the set over the middle half (p25–p75) of every comparable iron set on record — the busiest rung here is built from 900.
Callaway Big Bertha B21 Iron Setmiddle half of the field
A break in the line is a club the set does not publish a loft for — it is never bridged, because joining across a gap would draw a loft the manufacturer never stated. Every brand's name for the gap wedge is pooled into one rung, since only 25 of 917 sets publish two of them.
The head half
Read the set through
Callaway Big Bertha B21 Iron Set · 7 Iron
- LOFT · X AXIS29°
- 19th percentile — stronger-lofted than 81% of the 889 sets that publish a 7-iron
- LIE · Y AXIS62.5°
- 77th percentile — more upright than 77% of the 889 sets that publish a 7-iron
7-iron field: Loft × Lie
The 7-iron of every comparable iron set on record publishing both loft and lie — 889 of them, binned by density.
Offset
Callaway Big Bertha B21 Iron Set · 7 Iron — the leading edge sits behind the line of the shaft by the published figure, drawn to the scale marked and seen from the toe, which is the one view that shows offset truly: it runs perpendicular to the face, so a picture square to the face would have it pointing at you. The outline is a nominal iron — this database holds no head geometry — so the gap the arrow spans is the only measured thing in the frame. The dashed edge is the median of the 7-iron of 580 iron sets on record that publish one.
Offset through the set, against the field
Callaway's published offset at each club, over the middle half (p25–p75) of every comparable set on record that publishes one.
Callaway Big Bertha B21 Iron Setmiddle half of the field
A break in the line is a club the set does not publish an offset for — it is never bridged, because joining across a gap would draw an offset the manufacturer never stated. Every brand's name for the gap wedge is pooled into one rung, since only 25 of 917 sets publish two of them.
Specifications by option
What this record publishes. Across 10 options: loft, lie, length and swingweight on every one.
10 rows, unsorted, collapsed — use the button below the table to show every option.
| 19 | 4 Iron | 60.5 | 0.32 | 38.75 | D1 |
| 22 | 5 Iron | 61.3 | 0.305 | 38.125 | D1 |
| 25 | 6 Iron | 62 | 0.29 | 37.5 | D1 |
| 29 | 7 Iron | 62.5 | 0.27 | 37 | D1 |
| 33 | 8 Iron | 63 | 0.24 | 36.5 | D1 |
| 38 | 9 Iron | 63.5 | 0.215 | 36 | D1 |
| 43 | PW | 64 | 0.185 | 35.75 | D1 |
| 48 | AW | 64 | 0.15 | 35.5 | D1 |
| 54 | SW | 64 | 0.125 | 35.25 | D1 |
| 60 | LW | 64 | 0.1 | 35 | D1 |
Head geometry doesn't change with the shaft, so it's stated once. A blank cell means Callaway did not publish that figure — we don't estimate.
Callaway publishes offset in millimetres; the offset (in) column is that figure converted, and the record keeps Callaway's own figure verbatim.
Measured against comparable clubs
Where this club's published fitting specs sit among comparable clubs — never how good it is.
| Figure | Published | All irons | 2020 | Among its peers |
|---|---|---|---|---|
| Strongest-lofted 7-iron | 29° | =119th of 953 | 4th of 15 | =18th of 121 Callaway irons · =108th of 208 high-handicap irons |
| Most offset at the 7-iron | 0.27" | =5th of 583 | too few comparable clubs to place | =5th of 74 Callaway irons · =5th of 155 high-handicap irons |
| Widest loft range | 41° | =64th of 1,104 | 1st of 16 | =12th of 125 Callaway irons · =11th of 208 high-handicap irons |
| Most upright lie | 62.5° | =204th of 941 | =4th of 12 | =5th of 121 Callaway irons · =55th of 203 high-handicap irons |
| Longest | 37" | =265th of 894 | =6th of 12 | =28th of 112 Callaway irons · =110th of 201 high-handicap irons |
player level — derived
This iron reads as built for a high-handicap player — our deterministic reading of 7-iron offset 0.27", 7-iron loft 29°. A design classification, not a rule about who may play it. How the bands are read →
Or go straight to a comparison: vs Ben Hogan Icon Irons · vs Cobra KING Forged Tec Iron Set · vs Wilson Staff D7 Forged Iron Set
More irons
Callaway Mavrik discontinued 2020 · 18°–56° · 10 options Callaway Apex 21 discontinued 2021 · 19°–48° · 9 options Callaway Apex DCB 21 discontinued 2021 · 20°–48° · 8 options Callaway Apex Pro 21 discontinued 2021 · 20.5°–50° · 9 options Ben Hogan Icon Irons 2020 · 22°–46° · 7 options · 2 stock shafts Cleveland Launcher UHX Utility Iron discontinued 2020 · 18°–23° · 3 options Cobra KING Forged Tec Iron Set 2020 · 19°–49° · 9 options Honma T//World TR20B Iron discontinued 2020 · 1 option
Other Callaway irons on record. Irons released in 2020 by other brands, one per brand. Nothing here is a ranking or a recommendation. Browse every club →
What's on this page
In progress2 of 3 built
2 of 3 parts of this club page are built, and we're filling in the rest.
- Callaway's own specs, not built yet.We haven't found Callaway's own page for this club yet — everything here comes from the sources listed at the foot of the page.
- Published options, built.10 configurations with 5 of the 7 specs an iron can publish.
- Stock shaft, built.Callaway names no stock shaft for this club on the sources we hold, so there's nothing to link.
The site is in beta and the database is still being built, so expect gaps. Know something we don't? Help us fill it in — a link to where it's published is worth more than anything else you could send.