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Hammer Web M.B.
The Hammer Web M.B. (Mass Bias) continues the performance success reputation of the Web series of bowling balls from Hammer. The Web M.B. features an elongated rendition of the Spheroid Core design. This core shape gives asymmetry as well as increased ball reaction that is desired by Web and Hammer fans. This upper-mid performance ball has a coverstock base that was previously found on Black Widow bowling balls, the Semtex NE Pearl was updated and ideal on medium lane conditions.
- Color: Dark Blue/Purple
All colors do vary somewhat from the picture shown - Coverstock: Semtex NE Pearl
- Core: Spheroid Asymmetrical
- Finish: 500, 1000 Siaair/Crown Factory Compound
- Reaction: Skid/Flip
- RG: 2.480 (15# ball)
- Differential: 0.048 (15# ball)
- Hook Potential: High
- Length: Late
- Recommended Lane Condition: Medium Oil
- FCC Rating: Total-25.75, Finish-8, Core-8.25, Cover-9.5
- Manufacturer's Warranty: Two years from purchase date
- A few tiny pit holes in the cover stock of the ball are normal
- SKU: HAM60106428
- Product ID: 13066
- Brand: Hammer
- Category: Bowling Balls
- Ball Performance: Upper Mid-Performance Balls

Customer Reviews | 2 Customer Questions
By Amy D from Dayton, Oh
Pros:
hits like a truck; good length
Best Uses:
med to dry conditions
Bottom Line:
Yes, I would recommend this to a friend
The Best Web!
The Web M.B. hits hard on the backend. It’s a good shiny pearl that give me great length and continuation through the pins. I love going to this ball after the 2.0. This Web M.B. is the first of the Web series that I loved!
By rocketron from cleveland,ohio 44135
Pros:
great ball very smooth and predictable
Cons:
have no cons
Best Uses:
for second, and third games
Bottom Line:
Yes, I would recommend this to a friend
hammer web mb
not a big pearl cover kinda ball guy, but after throwing my hammer web m.b. pearl second and third game great ball reaction and the hammer drives through the pins a lot stronger than i thought it would, but under control, i apologize to hammer great ball very happy with the results and it also looks great driving through the pins, I am 67 years young right handed 14 lb. hammer 15 mph. 198 average two times a week bowler, some times three. keep up the great work hammer, ps I have been bowling over 55 years and love the game, thanks to 14 pound balls like the HAMMER, U R right nothing hits like a HAMMER!!!! thanks
By rocketron from cleveland,ohio 44135
Pros:
great ball very smooth and predictable
Bottom Line:
Yes, I would recommend this to a friend
hammer web mb
love how smooth and predictable, yet it continues going through the pins first time i bowled with the web, fresh house shot, i just wanted to throw the hammer,after two games around the pocket leaving ten pins and seven pins not to mention three 7- 10 pocket hits, third game pounded a nice 268 game, ps i am 67 years young right handed 14 pound hammer 15 mph. twice a week bowler average in the upper 196+ love the hammer and bowling, keep up the good work HAMMER, happy new year.
By Christopher Doerr from Merrill, WI
Bottom Line:
Yes, I would recommend this to a friend
50 x 4 1/2 x 75 - PAP 4 ½ -> and ½^ - Speed - 15mph
This layout went fairly long for me when I threw the first few shots. I used it when the lanes were breaking down and the ball performed how I would have expected it to roll. Clean, strong and plenty of hitting power left over. When I decide to drill another one, I would go stronger with the layout. I could always adjust the surface to use the ball when the lanes are more fresh.
By Jessica from NY
Bottom Line:
Yes, I would recommend this to a friend
Another great Hammer ball!
A match made in heaven to compliment the already successful Web solid. Switch to this asymmetric ball when you need something to get through the heads clean but have some angularity on the back ends and continuity through the pins. Also, don't be afraid to hit up the cover with a little bit of surface. Another great ball to have in your arsenal.
By Ian L from NY
Bottom Line:
Yes, I would recommend this to a friend
Great ball
I absolutely love the Web MB. It is a perfect compliment to my Web Tour Hybrid. The MB is very clean through the front part of the lane and has a smooth but continuous motion through the pins. Comparing it to the Web hybrid, it is a good 3 feet longer and 3-4 boards more on the back end. Great ball for those medium length patterns.
By AJ from Rockford IL.
Pros:
Very predictable
Cons:
May not like super oily lanes
Best Uses:
Drier to Medium/Heavy Depends on volume, Great THS ball
Bottom Line:
Yes, I would recommend this to a friend
Great Addition To The Web Series!!
The Hammer Web M.B. is one of the best performing Web balls that I have thrown, to date. Stretching the core to add a little bit of Asymmetry, really added more bang for your buck to this ball.
When I roll this ball, I see the normal overall shape that we've seen with the Web series. But, there is a difference. This one grabs the end of the pattern better than it's previous releases. As it should, considering the asymmetry of the core. I find more uses for this one because of its asymmetry. This release allows me to play the fresh with it, up the lane. It also allows me to go to it after my Hammer Black Widow 2.0 has become too early. Playing a deeper line at that point and needing better change of direction down-lane. This Web M.B. is a great selection to add to your bag. Especially if any of the above (reasons it rolls good) apply to you. One more additional thought to add. I didn't have to hit the surface with an abralon pad. Ball was perfect out of the box.
Andrew Jensen
Bowlersmart Rockford Cherry/South Beloit Manager
Track Regional Elite/Coolwick Staff
By Joe Somd from Seattle
Bottom Line:
Yes, I would recommend this to a friend
Is there a Dr. in the House?
Super Clean and Super Strong Doooown lane!
This is a great compliment to both the Web Tour Hybrid and the Black Widow 2.0. The longer Spheroid core has definitely earned a place in my bag. It actually fits between series AND new releases. Hammer has created a great 1-2 punch with the addition of this ball to the Black Widow 2.0. Super responsive and you hardly see a stop in motion down lane. I feel as if I really can't miss right.
This Web M.B. cover is soooo clean and still is aggressive enough down lane to not miss the spot and recover.
This ball is AMAZING!!!!
By M Staninger from Charlotte
Bottom Line:
Yes, I would recommend this to a friend
Something Different from Hammer!
First off, pictures do no justice at how great the Web M.B. looks. This ball might be the cleanest release Hammer had made in years, meaning the ball holds it's energy for friction really well. I see this being great for a mix of patterns after some transition has happened. This is also an amazing choice for those house shots that let you open the lane up some. I highly recommend this as a ball to go to when the Web Tour Hybrid isn't storing enough energy.
By Kerry from Lititz, PA
Bottom Line:
Yes, I would recommend this to a friend
Asymmetric Ball packed with a PUNCH!
I threw this ball in league last night for the first time. All I can say is I think it's going to have a permanent spot in my bag. It was smooth through the midland and down lane but was powerful through the pins! It had no issues carrying corner pins. It very hard to find ball reaction like this from an asymmetric bowling ball. Hammer hit the nail on the head with this ball. It also compliments the original Web nicely.
By Mathew jones from phoenix, arizona
Bottom Line:
Yes, I would recommend this to a friend
Super clean
For the web mb I threw this ball game 3 of league and this cover is super clean so gets through the beat up fronts pretty easy and makes that sharp move off the spot you need once the fronts burn up and oil carries down. Game 3 I left 3 blower 9 pins so this ball had no problem getting through the pins. And definitely has a spot in my bag once the fronts get beat up and oil carries down
By Sweetpea Bowl from Worcester, MA
Pros:
Shelf appeal, angular ball motion
Best Uses:
Broken down patterns, Medium volume patterns
Bottom Line:
Yes, I would recommend this to a friend
Hammer Web MB
Here is my take on the new Hammer Web MB. The Hammer Web MB features a new asymmetric version of the original Web core wrapped by a Semtex NE Pearl cover. The Web MB is Dark Blue/Purple in color and factory finish is Factory Compound.
My "vitals" are a 405 rev rate with a PAP of 5 9/16 over and 1/8 up. I drilled the Web MB with a 60 x 5 ¼ x 70 layout and have used on both fresh and leftover THS, a left over medium distance challenge pattern and fresh Kegel Tungsten. I have thrown it at factory finish and 4000 Abralon.
I have been a fan of the previous Web releases, especially the Tour Edition versions. So, when Hammer announced the Web MB, I was intrigued. The Web MB performs EXACTLY as advertised. The core/cover combination allows the ball to be very clean through the front. Personally, I preferred the 4000 Abralon finish just to see the ball pick up a bit earlier. However, the motion in the back was what really got my attention. When the Web MB saw the friction, it simply took off with a very angular and defined motion. That is impressive, especially in an asymmetric core ball. Given this core/cover combination, this ball will be a great choice on medium volumes of oil or when the pattern is breaking down and the bowler is looking for a cleaner yet strong ball. Given how easily the ball gets through the front, this ball will be a great choice for bowlers who have lower speeds or are rev dominant.
See your local proshop for more on the Hammer Web MB.
By jkaseehammer from Coatesville, PA
Bottom Line:
Yes, I would recommend this to a friend
Web M.B.
Great house shot and transition (game 2) ball! For me, the Web M.B. is very clean through the fronts and has a skid/snap motion off the back of the pattern. I have been able to use this ball on house shots and on sports shots when I need to open my angles. This ball creates a great one-two punch with the either the Black Widow 2.0 or the Web Tour Hybrid.
By Trackbowlerbob from Pacifica
Bottom Line:
Yes, I would recommend this to a friend
Hammer Web MB
Hammer has taken my favorite core and made a very dynamic reacting bowling ball. It has a true skid/flip reaction with this pearl cover stock. I mean it really dives through the pins when it sees friction. It has an extremely hard hitting shape that gives me some awesome looking strikes. Get it on the right condition and I could see some really big scores with this one.
By JMc from Phoenix
Pros:
Clean through the front, continuously smooth downlane
Cons:
Don't expect a big backend
Best Uses:
Late in a block, fried heads
Bottom Line:
Yes, I would recommend this to a friend
Clean Late Block Ball
Layout - 65x4.5x35
I heard this ball was smooth and clean through the fronts, and it’s something I welcome in my arsenal when lanes are pretty torched or I want to stay right instead of swinging the lane. This ball meets the demands of those conditions. There is no doubt this ball will push cleanly through the front and enable you to stay right a little longer. I would not expect this ball to hook a significant amount, but it will be a smooth continuous motion to the pocket. For such a smooth and clean ball, this hits far stronger than I would have expected. A big win with this ball. This ball is smoother downlane compared to the Melee Jab Blood Red.
Customer Questions & Answers | Reviews
Question:
What's the different between Web MB and Web Pearl?
11/4/2020 - By TwohandedbowlerHave an answer to this question?
Answer:
Both have a type of pearl coverstock and both have a polished finish for good length but the weight blocks are different with the Web Pearl having a Symmetric weight block and the Web MB having an Asymmetric weight block which gives increased ball reaction.
11/5/2020 - By Bowling.Com Staff0 of 0 customers found this answer helpful. Did you find this answer helpful? Yes | No Thanks for your feedback!
Question:
how would this ball be for a high speed, and high rev rate bowler?
11/17/2020 - By meHave an answer to this question?
Answer:
Since both your speed and rev rate are higher, it should still be a decent option for you. It is designed to read later on the lanes and it will have a sharp backend hook in medium oil conditions. This ball would not be a good option for someone with a high ball speed and low rev rate
11/19/2020 - By Bowling.Com Staff0 of 0 customers found this answer helpful. Did you find this answer helpful? Yes | No Thanks for your feedback!