Callaway Big Bertha OS irons review
It's designed to help high handicappers hit their irons further
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Golf Monthly's technical editor reviews the Callaway Big Bertha OS iron, designed for high handicappers that need help hitting the ball further and straighter
Subscribe to the Golf Monthly newsletter to stay up to date with all the latest tour news, equipment news, reviews, head-to-heads and buyer’s guides from our team of experienced experts.

Joel has worked in the golf industry for over 15 years covering both instruction and more recently equipment. He now oversees all equipment and video content at Golf Monthly, managing a team of talented and passionate writers and presenters in delivering the most thorough and accurate reviews, buying advice, comparisons and deals to help the reader or viewer find exactly what they are looking for.
One of his career highlights came when covering the 2012 Masters he got to play the sacred Augusta National course on the Monday after the tournament concluded, shooting a respectable 86 with just one par and four birdies. To date, his best ever round of golf is a 5-under 67 back in 2011. He currently plays his golf at Burghley Park Golf Club in Stamford, Lincs, with a handicap index of 3.1.
Joel's current What's In The Bag?
Driver: Titleist GT3, 9°, Fujikura Ventus Black 6 S shaft.
Fairway wood: Titleist TSR3, 15°
Hybrid: Titleist TSi2, 18°
Irons: Titleist T150, 4-PW
Wedges: Titleist Vokey SM10, 50°, 54° and 58°
Putter: LAB Golf DF3
Ball: 2025 Titleist Pro V1x