Mizuno MX-300 Iron Review

Back in May of this year, The Hackers Paradise got the opportunity to review the MX-200 iron set from Mizuno and came away extremely impressed. We felt as though the MX-200 irons were the perfect blend of game improvement and game enhancement all wrapped up together in a club set with amazing feel. A couple of our lower handicap players felt as though these irons had just a tad too much offset for their eye and their game and were really stuck in between sets. They loved the feel and added forgiveness that the MX-200 set offered, but felt it was just a bit more game improvement than game enhancement. Mizuno has fixed that problem for them with the new MX-300 iron that will compliment the MX-200 set perfectly.
Click on each picture for Large Hi-Res Image
From the Company
The new Grain Flow Forged MX-300 irons with Y-TUNE PRO technology are the perfect players spec iron with enhanced game improvement technologies. The head specifications of the new MX-300 irons provide a more traditional look with a minimal progressive offset, a compact head size and modest sole width to deliver the look for an aggressive player profile. The full cavity utilized in the MX-300 irons contains the reconfigured Y-TUNE PRO technology for enhanced feel and ball flight control, with added forgiveness. The milled pocket cavity (3-7) redistributes 12 grams of discretionary weight low and deep to provide a high penetrating launch, while the scoring irons (8-GW) utilize a solid power bar design for maximum solid feel and pin attacking control. The MX-300 irons are the perfect weapons for the player looking for the combination of feel, forgiveness and ball control.

Tech Specs
*Innovative Y-Tune Pro Technology provides enlarged sweet area for enhanced forgiveness along with a more traditional head profile in the playing position.
*Milled pocket cavity (3-7) for a low deep COG to deliver a high penetrating ball flight
*Solid Power bar design (8-GW) for maximum solid feel and accuracy in the scoring irons
*Patented Grain Flow Forged, 1025E “Pure Select” mild carbon steel provides the ultimate soft, solid, and consistent feel
*Impact sound and feel are optimized through extensive use of Modal Analysis which separates Mizuno irons from the competition
*Durable double nickel chrome plated finish
*Modified U-grooves; which conform to the Condition of competition 2010, produce the ideal spin rate for maximum playability in all conditions
*Aggressive, dual cambered sole design for consistent playability from all types of lies
*Shaft Availability: Dynalite Gold XP (R300 S300)
*Grip Availability: Golf Pride M-21 58 Round
When it came to looks, a few of our testers did not care for the blue filled cavity back of the MX-200. Some called it “sticker looking” and while I very much liked the look, it was one of our only minor complaints about that iron set at all. The MX-300 features a completely different cavity and one that every single tester involved liked quite a bit. The only color featured other than that of the nickel chrome finish is a textured black and it is only used in two very small areas. The cavity overall has a simple, classic, and elegant design to it that definitely looks more game improvement to game enhancement. The thin topline serves to quickly remind you that these are more of a blend between game improvement and game enhancement. The overall head size is extremely compact with a thin sole and very little offset to be found that gives you the extreme confidence that working the ball will not be an issue at all with these clubs. The entire look of the clubs is what quite a few of our testers referred to as “classy”.
Page 38 Mizuno 300
Range Testing
As pictured above, THP tested the Mizuno MX-300 irons for the inaugural issue of THP: The Magazine and were able to gather 16 golfers to try them out. What we were able to find is that the MX-300 line could in fact be the perfect compliment to the Mizuno line and the MX-200s. The MX-300s are like the dream blend set of workability and forgiveness to coincide with amazing feel. Well struck balls felt perfect and soft and when you missed, you got the immediate feedback letting you know exactly what you had done. The beauty of the MX-300s really did shine on the misses where the club still offered enough forgiveness when the ball was hit off the toe or the heel. While distance was shortened, the ball flight was still penetrating to high, and straight. Our testing has shown that the MX-300 irons from Mizuno are slightly more on the game enhancement side than the game improvement side and few of the higher handicappers struggled a little with control. In fairness, that is what we liked about them the most. Mizuno has strengthened their iron lineup now and really do have an iron set for every golfer out there. While some will view this as too many sets to choose from, those paying close attention will see that the brand has fine tuned their lineup to better fit the masses.
Course Testing
The Mizuno MX-300 irons have been tested on the course for 16 rounds of golf and countless range sessions. During the course of the testing, two characteristics shine through with these clubs more than any other. The feel that they give off is perhaps the best we have felt in any “blend” set we have covered. Soft and buttery at impact with solid feedback for those looking to work on their game. The 2nd part of it is that these could be the most versatile cavity back irons we have played and their game enhancement side of them shines through like few others. Play it high, low, draw, or fade with no issues at all. The shotmaking ability and performance of the Mizuno MX-300s is one of the best we have come across, even more so than that of the MX-200s that we reviewed previously. Using less offset in these irons is apparent right at your first address of the ball and if you dread the “straight ball” and like to move the ball flight around, this set offers that with no issues whatsoever. The game improvement side shows its head when you miss them on both the toe and the heel. While playing we hit a few off of the toe and the ball still has a tendency to fly straight, however you will still get that feedback letting you know exactly what happened in your ball striking. After myself and others have tested these irons for a couple of months, one thing is a constant. The performance is absolutely spectacular!

A few more notes about this testing is that it is quickly apparent that the clubs have great weighting around the sweet spot and it produces a wonderful medium ball flight that is very penetrating and not too high at all. The only issue a few golfers had was that while this set is a blend of game improvement and game enhancement, the lofts are more on the game improvement side of things. An example of this would be the PW being at 45*. While it did not bother me at all, some of the more traditional golfers felt it caused some gap issues in their game that they would have to address with different wedges. Keep in mind that the set does come with a GW that is at 50* so that could fix that issue for most. You can see the entire set specs here. One more thing to note about this set is that not a single tester that spent time with them on the course was not extremely positive and ready to put these in their bag full time. It is a rare case when every single tester enjoys a product this much, but when it does happen, we know the company has put out something pretty special.
We are definitely sold on the new Mizuno line of irons and our testers agree completely. THP loved the MX-200s and MX-300s fill in the next slot almost perfectly. Keeping the simple and gorgeous design and adding a little more game enhancement is exactly the only thing missing and now Mizuno has it in their lineup. We are seeing so many more great blend sets coming out and while these are still considered by many to be game improvement irons, we think they are actually more suited to those looking for game enhancement or players irons. When you take an iron that offers superior feel, cutting edge performance and has forgiveness thrown into the mix, what you end up with is a special “blend” and that is what we believe Mizuno has on their hands with the MX-300 irons. The set comes 4-GW and has a street price of $799. At that price we believe that it is in fact quite a bargain compared to many other sets that are out right now. For more information on these or any other products that Mizuno is offering, check out their website at www.mizunousa.com.

Till Next Time

Josh B.

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  • those pictures are sick. the last one blown up i felt like i could reach out and touch the darn thing. i picked up these irons 2 weeks ago and could not be happier. great review and pretty spot on for what i am seeing.

  • Great job on the review JB. Mizuno continues to set a standard for all others to try and reach. No doubt one of my buddy’s will end up with a set of these this year and taking money from me on the course, lol. Good job once again Mizuno!

  • How would you guys compare them to the MP-52’s?

  • madredneck,
    They are very different irons. The MP line and MX line are really their two different lines between GI and GE. The MX-300 irons really come as close to the blend as we have seen.

  • Great review! Sounds like Mizuno continues to deliver excellence with their iron sets.

  • Nice review JB.

  • The MX-300’s are nice looking clubs. They probably aren’t the clubs for my game as I’m not a lower handicapper. Hope I get a chance to try them out though because you never know for sure until you hit them. Great review.

  • Nice review JB. These sticks received the feedback i anticipated and the feel is ridiculously smooth. Much better looking than the 200’s in my opinion and that bar that Mizuno seems to set keeps creeping up higher and higher.

  • Great review and I would love to put them in my bag… so sad to note that again Mizuno decided not to market a left handed version of this beautiful looking set… I still don’t understand why they offer left handed golfers way fewer options than righties…

  • birdie,
    We would love to see all brands have more LH options, unfortunately there are just far more RH than LH golfers and companies have to determine if the cost is worth it to run another line. We believe that Mizuno will see a ton of success with the newer MX line and will open up some more options.

  • What was the handicap range of the unanimous testers who chose to bag these irons?

    Also, would you think a mixed set of MX-200 long irons and MX-300 short irons would be a good mix, seems like the lofts match up well?

    Thanks for the great reviews

  • singhstar,
    For our MX-300 testing we used a large variety of testers since it was for our magazine and we have to find out who we believe the clubs are suited for. For the site review the irons were tested by groups ranging from scratch to 12.

    MX-200s and MX-300s could offer a good blend, but I am not big on mixed sets, so I might be the wrong person to ask.

  • What a great write up. I saw these in the magazine and was hoping they would get the full review. I demoed them at a local store last week and really love the feel. I wanted the MX-200s but like many the offset hurt me. When I miss, it is a hook, so I need a more neutral club face. This could be the one. Stuck between these and the MP-58s. By the way, the last picture in the review when you blow it up, is so gorgeous.

  • Thank you for the great reviews. Superb.

    Which did you prefer between the Nike VR forged split cavity and the MX300s? And why?

  • Gary,
    Both are very good irons and have pros and cons with both of them. I am not sure you can go wrong with either set. We have reviewed both (VR Splits earlier in the year) and they remain one of my favorite irons of the year.

  • How do the MX 300’s compare to the Cleveland CG7 BP or the new Titiliest AP1? I’m a good 9 HC and it is time to replace my current irons. All of your reviews are great but I originally was leaning towards Taylor made but now I wonder.

  • Having read both reviews on the mx200,300′ and currently playing ping i5 and holding a handicap of 15 which set in your opinion should i be leaning towards. thanks
    john r

  • It depends if you want offset or not. I think most 15s may benefit from more forgiveness in more of a GI club.

  • Thank you for your prompt reply looks like tomorrow i’ll be trying out and purchasing the 200′ Hope 2010 is happy and healthy

  • Hello Josh and thank you for your well written review of the MX 300’s.

    I am a 13 handicap and have been playing MP 52’s with NS Pro 950 regular shafts for the past season. I bought them because I wanted to work on my game. I am happy with them but have to be playing well to get the most from them.
    Now the MX 300 is available I am considering them to replace my MP 52s.

    My question is how do the different sole grinds on the MX 200, MX 300 and MP 52 affect playability? The MX 200 sole is large and has a pronounced triple bevel (like the MX25), the MX 300 appears to be narrower and have two pronounced bevels, while the MP 52 sole grind is far less pronounced.

    Is the MP 52 simply too much club for my handicap level and is the MX 200 or the MX 300 a better choice?


  • I loved the description of their feel as “soft and buttery” that is exactly how I felt about the MX-200, buttery! Great review as always.

  • Hey Josh, nice review. Hopefully, I’m not too late coming in to this review. My hc hangs around a 12, but most of that comes from lack of practicing my short game and poor driving. My iron play tends to be very strong. I’ve been using Callaway X-18 Pro Series since they came out and have loved them for the most part. I feel like it’s time to catch up with technology and keep coming back to the MX-300’s. Are these going to be clubs I need to give a serious look at based on what irons I’ve been playing? They seem similar in that they are kind of a happy medium between GI and players irons. Thanks, NICK

  • Nick,
    I think you should try as many irons as you can. If you are interested in trying out Mizuno, make sure you try both the MX-200 and MX-300 as they are similar but with slightly different offset and different weighting. Both are great irons.

  • I switched from the MX 200 to the MX 300 and there is no comparison in feel and performance, the MX 300 in my opinion is far superior. I played the Nike VR in between Mizuno clubs and it was really difficult for me to give them up, but the MX 300 is just plain superior.

    I am a 12 handicap. These clubs just instill confidence and I look forward to lowering my handicap this year.

  • Just picked up a set this week. Tried ping i-15 and diablo forged. No contest on feel. These irons just feel great and have enough forgiveness to help out a 12 handicapper like myself.

    The diablos were long ( i think they are bent strong ) but waaaay more spinny.

    One more plus in the mizuno fit system. Very nice and accurate. It matched my last extensive fitting in way less time and effort.

    Now if the dang weather would cooperate…………

  • I have a few questions. I really like the site!

    Is there going to be a re-order available for the magazine?

    So with the modified U-grooves, do the MX-300 irons spin enough?

    I’m more of a weekend duffer, and went to my iron fitting with an open mind. Basically, I didn’t care the brand or look, etc., “just fit me with the best clubs for my swing.” I used the Mizuno swing optimizer and then tried out a handful of heads. The fitter said the MX 300 was the way to go, so I ordered a set w/ the DG s300 shafts.

    I didn’t realize the grooves are conforming for competition. I’m far from entering any tournaments and would like any help I can get. Think the modified U-Grooves will put enough spin on them?

    Thank you!

  • Duffer,
    Check out the forum. There is a re-order and the next issue will be out next month available at many retailers as well.

  • […] crowd, Mizuno has plenty in their lineup to help in those situations like the Mizuno MX-200 or the Mizuno MX-300, both of which we reviewed already. However almost all of our testing panel did remark on the […]

  • I am trying to chose between the MP 58 and the MX 300s. I am about an 11 hadicap(18 holes) and was wondering which set would suit me better

  • Keith,
    At an 11 handicap, it would really depend where your misses are. If you are missing to the right (RH Players) I would not recommend either set due to the minimal offset. You may want to check out our forum to get other opinions, but to me it really depends on where your struggling with ball striking.

  • have you got a response to Nick70 i am in exactly the same position

  • what is the reply to nick 70

  • Nick and Clive,
    I would say that it really depends on your misses. If you have a tendency to miss to the right (RH golfers) the lack or minimal amount of offset could be an issue. You may want to have a look at the MX-200s due to that. If your misses are a hook, these could work. They are not the most forgiving irons, and are definitely players clubs. But do have some great weighting around the perimeter to help with a few mishits.

  • How do the mx 300s compare to the mx 23s ?

  • I’m in the same position as Terry Bosley: how dot he MX 300s compare to the MX 23? I was looking at the Ping G15, by too big for my taste.

  • The MX-300 vs the MX-23 in my opinion is night and day. They are completely different irons in terms of forgiveness, ball flight, and club head weighting.

  • I am currently playing the mx 25 at a 13 handicap. how is the mx 300 different? are they more offset? more of a players iron?

  • I am currently playing the mx 25 at a 13 handicap. when i miss a shot its usually a hook. how is the mx 300 different? more offset? more of a players iron?

  • Terry,
    MX-300 has a smaller head size and slightly less offset.

  • I have been testing many irons lately and have narrowed down the choice between the MX 300 and the TM R9. My index is between 9-10 and I really wanted a “players” club, but in the end I just hit these types of clubs better. Both offer some feel and control – but are more consistent. I like the feel of the MX 300 better, but the R9 still is much farther (consistently 10 to 15 yards farther.

  • Michael,
    The MX-300 is very much a players club. Smaller club head, minimal offset, etc…

  • Hi Josh,

    I’m in the process of finding new irons, the problem is that I’m a leftie. I have MP-32s right now, and the lack of forgiveness is definitely starting to get to me (after having used cleveland ta7’s prior to the MP-32s).. I was hoping the mx 300s would be the answer but alas, nothing for lefties as usual. which other clubs out there would you recommend that would be similar to the mx 300 but available for lefties? thanks!

  • Mega pissed this isn’t available in left hand, I have mp-60’s and looking for a new set, this would’ve been perfect. Mizuno irons have the best feel by far and I thought I’d be a mizuno user for life. Every club mizuno has released this year is not available in left hand, very disappointed.

  • Great review. I won a custom made set of these several weeks ago and at the time didn’t know anything about them. This review really has me excited about my new sticks, they ship from the factory on Monday!

    4 Degrees Upright, KBS Tour X-Flex shafts and Golf Pride multi-decade grips.

  • Hi, I tried the MX-300 today and could hit it well from the get-go.
    Nevertheless I have a high (33) HC, with the main issue beeing my iron game.
    On a flip-side though, my current irons (a G9 clone) have some off-set and most often they go left.
    Can I consider the MX-300 or should I look for something else?

  • I’m in the market for an upgrade. I’m currently using X-22’s and while I like the feel, the shafts are waaay too soft (uniflex). Rather than re-shaft, which I’m told is expensive on these, I decided to give them to my Dad and move up. I’m looking at the MX-300 and the Srixon Z-TX. Any thoughts on how these compare? I’m pretty new to golf and in the mid-upper mid handicap area. But I’m looking for something I can grow into as well.

  • The first problem the pro shop says is that I stand on the wrong side of the ball so it’s hard to get the clubs you want. I am a 10 handicap golfer stationed in japan. I am looking to take my game to the next level. Looking to buy a new set of Mizuno’s. I hit the MX 200 at Golfsmith when i was in the states . I am realy interested in the MX-300 but they do no come in left hand. Do you have any idea when or if they plan on making a left had set, or can a set be special ordered?

  • What a blast from the past, I was looking through my bookmarks tonight and found this article bookmarked. This is the reason I found THP as I had just been fit for a brand new set of MX 300’s and was simply looking around the net to see what others were saying about them. Great read and these were a great set of irons.

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