Brunswick Siege Bowling Balls

Brunswick is coming out with a brand new line of bowling balls in their “Pro Performance Line”.

The first in this series is the [bowlingball value=”7128″/].  It features the new MACE asymmetrical core which is supposed to be the strongest core made by Brunswick.  As usual, I can’t wait to be able to give a full report of my findings for these bowling balls.

[bowlingball value=”7128,i150l”/]

Here is the information straight from Brunswick Bowling:

The deadly [bowlingball value=”7128″/] is the first in our new series of Pro Performance balls and features the new MACE asymmetrical core as well as the new solid Recoil coverstock. This is a strong ball that battles heavy oil and responds quickly to friction for great pin action.


M.A.C.E. ” Mechanical Asymmetric Core Engineering. The MACE™ core has three major benefits, Ultra Low RG core system to engage the Recoil coverstock, High RG differential to aid in traction through heavy oil and High RG asymmetric differential to quicken the response time to friction. Designed as a two component elliptical core
system, the MACE core is dynamically the strongest asymmetric core ever produced for a Brunswick ball.


Introducing Recoil™ coverstock the next extension in Brunswick coverstock technology. Recoil is a revolutionary coverstock developed by Brunswick to improve the mid-lane and backend traction of the ball on today’s slicker oils and lane surfaces. The Recoil coverstock was discovered through testing of new formulation additives and process changes in coverstock manufacturing.

Ball Motion

The Siege™ unites the new Recoil coverstock and the MACE core to produce a ball motion that is both aggressive in the oil and aggressive on the backend. The Siege is your ball when your game needs help battling heavy oil conditions and poor pin action.

Seize the lanes, Conquer the pins, Defeat your opponent!!

Micro Finishing Pads

Micro finishing pads have revolutionized the bowling industry by creating smooth surface finishes that many bowlers would assume are polished with a wax or similar compound. The benefit to the bowler is these finishes create length similar to balls coated with compound finishes, but are better able to handle today’s thicker oils and carrydown. The Siege is finished with 1000-grit micro pads driven by the new Haus high speed bowling ball resurfacing machine.

Reaction Characteristics

Out of the Box: With its 1000-grit micro pad finish, the Siege will provide excellent mid-lane recovery and a strong continuous backend reaction that matches up on medium to oily lane conditions for a wide range of bowling styles.

If your Siege goes too long:. A smooth surface will sometimes cause the ball to go too long before breaking. To get your Siege rolling sooner, dull the surface with a 500-grit micro pad. To further increase hooking action, use a rougher abrasive to create an earlier reaction.

If your Siege hooks too early: Smooth your Siege with 2000-grit micro pad to increase the length. If more length is needed smooth the surface to 4000-grit micro pad. If more length is still desired use Brunswick’s Factory Finish High Gloss Polish to increase length to the maximum.

Reaction Setup: The Siege can be drilled using the standard drilling techniques developed for asymmetric bowling balls.

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