JPX 919 Hot Metal Featured

Mizuno JPX 919 Hot Metal Irons Review

Mizuno JPX 919 Hot Metal Irons

The Mizuno JPX 919 Hot Metal iron is long, forgiving, and just plain easy to hit.  Through the use of different materials and a few tweaks to an already reliable design, Mizuno made the JPX 919 Hot Metal a Game Improvement iron dream.  If you’re a player that needs all the help you can get with your irons, Mizuno has you covered with the JPX 919 Hot Metal.

JPX 919 Hot Metal 11

The Looks

Let’s not beat around the bush here.  The Mizuno JPX 919 Hot Metal is a big, chunky, offset SGI-lookin’ iron.  There’s no getting away from that.  However, if you’re in the SGI market, this look will be fairly unavoidable.  The difference is that Mizuno manages to execute this look in a much cleaner way.  Though the offset is noticeable, the hosel of 919 Hot Metal flows very smoothly into the face.  This makes the club head look quite a bit cleaner behind the ball.

From a general aesthetics standpoint, the JPX 919 Hot Metal has a similar look to the previous JPX 900 series.  Mechanical lines and a mostly high-polished finish give the iron a modern look.  With minimal paintfill and branding, Mizuno maintained the clean look they’ve been known for for all these years.

JPX 919 Hot Metal 2

How Does it Feel?

At first glance, I expected the Mizuno JPX 919 Hot Metal to feel somewhat heavy.  In reality, the 919 Hot Metal feels the exact opposite.  It feels very light.  Considering this iron is designed for players looking to pick up speed and distance, the light weight makes a lot of sense.  A lighter club should, in theory, lead to a faster swing, which means more distance.  It’s not uncommon for a lighter club to feel unbalanced and difficult to control.  However, this is not an issue for the JPX 919 Hot Metal.  It was very easy to track the club and keep a smooth tempo through the swing.  Overall, the 919 Hot Metal is well balanced.

On impact, pretty much the entire face of this club feels active.  The Chromoly 4140M material allows for a “multi-thickness face for astonishing ball speeds.”  What I hear in that is that Mizuno is able to make the face thinner and hotter in more places to allow the ball to really jump.  This paired with Mizuno’s seamless construction (a one-piece cupped geometry) give you a hot feel at impact.  Only super fat shots, and extreme toe or heel misses have notably poor feel – as they should.

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How Does it Sound?

The sound from the Mizuno JPX 919 Hot Metal totally depends on what type of shot you hit.  Mind blowing, right?  A nice clean clip of the ball has a finely-tuned (more on that later) “slap” to it.  Heavier-to-fat shots carry a firm “thump” as opposed to the usual thud you get from the ground bringing your club head to a screeching halt.  A nice added bonus to the 919 Hot Metal’s forgiveness!  The stock shot – ball first, center of the face, a nice thin scrape of a divot – has that slap I mentioned before, but a little extra “snap” from the turf.  For a GI/SGI iron, it’s a pretty tough sound to beat.

Let’s revisit my “finely tuned” comment.  A common problem for these big irons with thin faces and big cavities is that the sound gets very metallic and borderline unappealing.  Don’t worry, Mizuno took care of that.  Mizuno put sound ribs in the in the topline of the club that are designed to “hit specific vibration patterns” at impact.  The specific pattern results in a sound that should be more satisfying to the golfer.

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On-Course Performance

Forgiveness and distance are the main purposes of the Mizuno JPX 919 Hot Metal irons.  Though the sole is a bit chunky, it has a perfect shape that seems to control itself through the turf.  What I mean by this is that it felt as if the club would only allow itself to go “so deep” and the club would track squarely through impact.  Frankly, hitting a good shot felt as effortless as just taking the club back and swinging away.  If I hit the shot a bit fat, the club would drive through and still give me good straight distance.  I had to hit it really fat to experience any real distance loss.

One of the JPX 919 Hot Metal’s key features is its Stability Frame.  The purpose is to, you guessed it, make the club more stable.  This also helps you get more ideal launch angles for approach shots into greens.  Often times, an iron designed to help you get longer, straight distance also comes with lower trajectory and more roll.  The 919 Hot Metal gets a nice high flight with a steeper drop to the green.

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Final Thoughts

This might be the most forgiving iron I’ve ever hit.  Let me be clear, a lot of manufacturers have made great GI and SGI irons, but I’ve honestly never experienced forgiveness like I did in the Mizuno JPX 919 Hot Metal.  I’ll be blunt.  I made plenty of bad swings with these clubs that would normally result in a 20-yard duff.  Instead, the Hot Metals would bail me out with unrealistic results I didn’t deserve.  Players looking for a long, extremely forgiving iron that’s easy to hit high and straight should put the JPX 919 Hot Metal at the top of their list.

Stock Mizuno JPX 919 Hot Metal Irons Specs

Club # 4 5 6 7 8 9 PW GW SW LW
Loft º 20º 23º 26º 30º 35º 40º 45º 50º 55º 60º
Lie º 60º 60.5º 61º 61.5º 62º 62.5º 63º 63º 63º 63º
Length 38.5″ 38″ 37.5″ 37″ 36.5″ 36″ 35.25″ 35.25″ 35.25″ 35.25″

7 Comments

  1. Great Review Bill.

    I got a set last October 4i to GW with Project x LZ iron shafts and love them. I am thinking of replacing my Callaway wedges with either the 919 wedges as I like the GW or maybe the S18 wedges, would you have a recommendation either way

    • Not really, you’d have to try them all out and figure out which works best for you depending on grind and distances. So much of that portion of the bag is too fine tuned for a blind recommendation.

      Thanks for the kind words.

      • Thanks for quick reply Bill, I normally would not consider a “set” wedge but my fitter suggested I go with the GW when I initially bought the clubs and I love it so hope the SW and LW are as playable. Not sure if you managed to test them or not ? I have read your review on the S18 wedges which was great as well so thanks for that.

        • No, we didn’t review them in the set.

          My statement still stands, it all depends on your wedge game and preferences to know which of those two would work better. You’d have to decide how you play those clubs in your round and which setup would work best – which is easiest alongside a good fitter.

          • Bill,

            Just to give feedback on wedges. Got fit trying both sets of wedges both worked well but opted for set wedges. Don’t regret it as they seem to be working well. Greens still soft from winter weather here in Scotland so interesting to see how they perform on firmer greens but so far so good. Kept the LZ shafts in as well.

  2. Hi Bill. Great review on these 919 Hot Medal irons! Today I hit these irons (7 iron only) and also the new 919 Hot Medal Pro irons (7 iron only) that have a slightly better look to them. Not quite as large with a bit less offset. Great look to these new irons! It did seem like the Hot Medal irons did carry and go further in distance which I guess is correct. What’s your opinion on this?? How about forgiveness?? Do both of these irons offer the same forgiveness?? How about launch and height? Thank you for any advice you can provide!
    Tim

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