Callaway Tour Authentic X-Prototype
Callaway Tour Authentic X-Prototype

Many Callaway fans have waited a long time for the brand to produce a set of muscle backs. The heads are seriously intimidating to look down on, but the feel from the centre of the club is incredible. Not for everyone – particularly at this price – but seriously good ball-strikers will not be disappointed.
Why you can trust Golf Monthly
These muscle backs made an immediate impact when they arrived out on Tour, appearing in Phil Mickelson’s and Ernie Els’ bags as soon as they were available. Designed by Roger Cleveland, the forged heads have minimal offset and a thin top line to provide a compact look. The X-Muscle Back is designed to give a consistent trajectory that suits the best players in the world.
Get the full list of Callaway reviews on Golf Monthly
Get the Golf Monthly Newsletter
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.
-
Hero Indian Open Picks, Predictions And Odds
After a dramatic Porsche Singapore Classic, the DP World Tour moves to India and the Hero Indian Open, which takes place at DLF Golf & Country Club
By Matt Cradock Published
-
Ford Championship Prize Money Payout 2025
It's the second Ford Championship this week on the LPGA Tour, where there's a $2.25m prize pot up for grabs
By Elliott Heath Published
-
Texas Children's Houston Open Picks, Predictions And Odds
After four weeks in Florida, the PGA Tour moves on to Texas, with the first tournament in the Lone Star State coming from the Texas Children's Houston Open
By Matt Cradock Published