Irons

Our 3 favorite insights from robot testing Callaway’s 2023 Apex irons

By: Jonathan Wall
callaway 2023 apex mb iron

Callaway's 2023 Apex MB (pictured), CB and Pro irons offer specific benefits for different player types.

Jonathan Wall/GOLF

Callaway’s Apex has expanded beyond the game-improvement and player’s distance categories in recent years and transformed into a full-blown iron lineup with an option for every handicap. That includes the latest Apex Pro, Apex CB and Apex MB we recently tested with the help of Golf Laboratories’ swing robot.

All three irons underwent a 3-point strike test (center, high toe and low heel) at 81 mph to see how they stacked up against the competition. Below are our 3 favorite insights from testing.

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Same but different

The Apex CB is geared for golfers who rely on workability and control Jonathan Wall/GOLF

As the traditional, perimeter-weighted iron in the lineup, the Apex CB is geared for golfers who rely on workability and control. The Apex Pro, on the other hand, comes in a similar compact profile with a combination of heel-toe forgiveness and distance-adding technology in the long irons with increasing control in the mid and short irons.

These irons are designed with different characteristics, but they also have some similarities as well. For example, CB and Pro came out of identical launch windows (20.4 degrees) across the three strike locations tested. In the ball speed department, Pro clipped CB by just .5 mph (averaging all three strike locations) with roughly 1-degree stronger lofts through the set.

Callaway Apex CB Custom Irons

$215
The new Apex CB ’24 Irons are designed for the most discerning tour pros and elite ball-strikers. This tour-cavity back is designed with an all-new forged construction for a pure feel, precise shot-making, and workability. THE ULTIMATE TOUR IRON. The new Apex CB ’24 Irons are designed for the most discerning tour pros and elite ball-strikers. This tour-cavity back is designed with an all-new forged construction for a pure feel, precise shot-making, and workability. PURE FORGED PERFORMANCE The Apex CB Irons are forged in a 5-step process from 1025 carbon steel, creating the buttery-soft feel discerning players crave. The body and face are forged as one-piece while MIM weights placed strategically in the heel and toe create a perfectly balanced design for enhanced workability and control. PROGRESSIVE CG DESIGN FOR ADDED CONTROL A progressive CG throughout the set improves trajectory control. The long irons feature a lower CG that promotes towering shots that land soft into greens while the short irons utilize a higher CG for a lower trajectory to promote more spin for added control. DYNAMIC SOLE DESIGN FOR ENHANCED TURF INTERACTION The new Apex CB Irons feature a Dynamic Sole Design with a pre-worn leading edge to cut through the turf more efficiently and trailing edge relief to ensure a clean exit. The result is an iron sole that maintains speed through the turf and promotes consistent contact on all shots.
 
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While the irons share similar characteristics, golfers considering Pro versus CB will want to ask themselves if they need more or less spin in their lives. The forged hollow construction on Pro noticeably dropped spin to the tune of 674 RPMs when compared to the one-piece CB. The difference in spin equated to just over a 3-yard difference in carry.

If you prefer to work the ball, spin is a necessary requirement to shape shots. This is where CB might be a better option. On the flip side, if you’re a better player who wants a bit more speed and tends to struggle with too much spin, the Pro could be in the discussion for further testing. It all depends on your needs.

Built for more

The Apex MB isn’t your everyday muscleback blade. Jonathan Wall/GOLF

Unless we’re talking about a hollow construction blade — which isn’t really a “blade,” if we’re being honest — you can generally expect traditional blades to have the following characteristics: a compact profile, thinner sole, traditional lofts, higher launch and increased spin.

Blade users, for the most part, are willing to give up speed and distance for consistency and workability. What’s interesting about Apex MB is that it doesn’t feel like you have to make massive sacrifices to play a blade.

Callaway Apex MB Custom Irons

$215
The new Apex MB Irons are developed for the absolute best in the game who are looking for a high level of performance in a modern Tour blade. With our Dynamic Sole Design, it provides more efficient turf interaction, enhanced workability, and the classic feel that elite players expect. A PURE BLADE IN A MODERN DESIGN The new Apex MB Irons are developed for the absolute best in the game who are looking for a high level of performance in a modern Tour blade. With our Dynamic Sole Design, it provides more efficient turf interaction, enhanced workability, and the classic feel that elite players expect. PURE FORGED PERFORMANCE The Apex MB body and face are forged as one-piece in a proprietary forging process from 1025 carbon steel, creating the purest feeling iron imaginable. PROGRESSIVE CG DESIGN FOR ADDED CONTROL A progressive CG throughout the set improves trajectory control. The long irons feature a lower CG that promotes towering shots that land soft into greens while the short irons utilize a higher CG for a lower trajectory with more spin for added control. DYNAMIC SOLE DESIGN FOR ENHANCED TURF INTERACTION These irons feature a dual chamfer on the leading edge to cut through the turf more efficiently. A trailing edge chamfer provides relief from the turf after contact for enhanced feel. This Dynamic Sole Design maintains speed through the turf and promotes consistent contact on all shots.
 
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Compared to the other muscleback blades we tested, MB was anywhere from 1.5 to 3 mph faster (ball speed) with about 500 RPMs less spin — in the same launch window.

Apex MB is far from being a “speed demon,” but if you’re in the market for a muscleback that offers CB carry numbers (or better) in a classic blade shape, there’s an option out there that checks the box.

Better than most

Callaway’s Apex Pro irons performed exceptionally well on toe strikes. Jonathan Wall/GOLF

It’s fair to say Apex Pro isn’t a game-improvement iron. The profile more closely resembled a better-player offering, even though it sports a hollow cavity filled with Callaway’s microspheres. If you’re a mid-handicapper who might initially get scared off by the compact profile and potential lack of forgiveness, keep reading.

The most common miss for most golfers is a high toe miss, which generally comes with a noticeable drop in distance, especially with irons. Most of the irons that underwent our robotic testing saw a 6-10 mph drop in ball speed on toe strikes. And when you figure 1 mph equals 3 yards, you can start to see why toe misses are particularly costly.

Callaway Apex Pro Custom Irons

$215
A revolutionary multi-material forged construction paired with our patented urethane microspheres delivers unmatched feel. An all-new progressive face is designed for exceptional distance with Tour-level precision. And a Dynamic Sole Design promotes improved turf interaction and better contact. The ultimate players performance iron has officially arrived. EXCEPTIONAL DISTANCE WITH TOUR-LEVEL PRECISION. A revolutionary multi-material forged construction paired with our patented urethane microspheres delivers unmatched feel. An all-new progressive face is designed for exceptional distance with Tour-level precision. And a Dynamic Sole Design promotes improved turf interaction and better contact. The ultimate players performance iron has officially arrived. ADVANCED FORGED PERFORMANCE For the first time ever in an Apex iron, a hollow body construction pairs a forged face with a forged 1025 carbon steel body to deliver a premium, ultra-soft feel. Our patented urethane microspheres also work to dampen sound and improve feel while still allowing the face to flex for high ball speeds across the face. NEW PROGRESSIVE FACE DESIGN FOR INCREDIBLE DISTANCE WITH ADDED CONTROL The Apex Pro ’24 irons feature a progressive face design to give players powerful long irons and more precise short irons. The long irons are designed with a powerful Forged 455 face cup to enhance distance and forgiveness. The short irons feature an ultra-consistent forged 1025 face plate engineered to give you control with your scoring clubs. DYNAMIC SOLE DESIGN FOR ENHANCED TURF INTERACTION The new Apex Pro ’24 irons feature a Dynamic Sole Design with a pre-worn leading edge to cut through the turf more efficiently and trailing edge relief to ensure a clean exit. The result is an iron sole that maintains speed through the turf and promotes consistent contact on all shots.
 
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Apex Pro actually beat most of the pack with just a 4.7 mph drop in ball speed on toe strikes. It was easily one of the best ball speed deltas — comparing center to high toe — we saw during testing.

That’s good news for better players who want to stay in a compact profile but still need some mishit protection, as well as mid-handicappers who’ve improved their ball striking and are currently toying with the idea of transitioning into a smaller profile.

The Apex Pro does a lot of things well, but it’s the high-toe performance that makes it a standout option.

Want to overhaul your bag for 2023? Find a fitting location near you at True Spec Golf.

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