Hammer Web M.B Bowling Ball

(15 reviews) Write a Review
MSRP: $229.95
— You save $85.00
Frequently bought together:


Hammer Web M.B. Bowling Ball

  • Color: Dark Blue/Purple
  • Coverstock: Semtex NE Pearl
  • Weight Block: Spheroid Asymmetrical
  • Factory Finish: 500, 1000 Siaair / Crown Factory Compound
  • Flare Potential: High
  • Radius of Gyration (RG): 16lbs - 2.49; 15lbs - 2.48; 14lbs - 2.52
  • Differential (Diff): 16lbs - 0.042; 15lbs - 0.048; 14lbs - 0.047
  • Intermediate Differential (Diff): 16lbs - 0.017; 15lbs - 0.018; 14lbs - 0.018
  • Fragrance: N/A

Additional product information:

The Web series of balls has quickly become synonymous with performance and has been revered by Hammer fans.  The Web and Web Tour offered two distinctly different core numbers, producing versatility, and helps fill out any bowler’s arsenal.  The Web M.B. (Mass Bias) incorporates an elongated version of the Spheroid Core shape, creating asymmetry and more ball reaction shapes for the Web and Hammer lovers.
The Web M.B. booms on the backend, its shiny finish and easy length create a perfect match with the Black Widow 2.0.  The cover is a familiar and popular Semtex base, found on previous Black Widow balls, and is enhanced with new additives for ideal performance on medium oil. 



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Additional Information

Lane Condition:
Factory Finish:
Crown Factory Compound
Core Type:
Pearl Reactive
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15 Reviews

  • 5
    50 x 4 x 75 – PAP 4 ½ -> and ½^ - Speed – 15mph – Rev Rate 380

    Posted by Christopher Doerr on Dec 8th 2020

    50 x 4 x 30 – PAP 4 ½ -> and ½^ - Speed – 15mph – Rev Rate 380 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.

  • 5
    Another great Hammer ball

    Posted by Jessica Aiezza on Dec 8th 2020

    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.

  • 5
    Great ball

    Posted by Ian L on Dec 6th 2020

    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.

  • 5
    Great Addition To The Web Series!!

    Posted by Andrew Jensen on Nov 28th 2020

    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

  • 5
    Web MB

    Posted by Tom Marlow on Nov 23rd 2020

    The Web M.B. incorporates an elongated version of the Spheroid Core shape, creating asymmetry and more ball reaction shapes for the Web and Hammer lovers. I drilled mine 20x4x40 with this layout I get great length threw the front of the lane and a strong smooth motion to the pocket. This ball hit hard and makes the pin fly. A perfect complement to the Black Widow 2.0. Tom Marlow Brunswick Regional Staff

  • 5
    Best ball out right now

    Posted by Alyssa on Nov 23rd 2020

    wow oh wow this ball is good. this asymmetrical ball booms on the backend but with its shiny finish and easy length, its very controllable. the web line is one of the best lines out right now! this ball STRIKES on just about anything!

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