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Brunswick Siege
discontinued item
Unfortunately, we no longer carry this ball. This page is available for informational use. Since this bowling ball is no longer available, find more bowling balls on our balls page or use our bowling ball selector to find a ball to fit your game.
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and Coverstock as the Brunswick Siege:
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Product Features & Description
Brunswick Siege
SKU: BRU60105214
Brand: Brunswick Bowling


High Performance
- Coverstock: Propel Reactive
- Color: Solid Black / Silver All colors do vary somewhat from the picture shown.
- Hardness: 75-76
- Factory Finish: 1,000 Micro pad
- A few tiny pit holes in the cover stock of the ball are normal
- Weight Block: MACE Two-component Asymmetrical Core
- RG max: 2.530
- RG int: 2.500
- RG min: 2.474
- RG diff: 0.056
- RG asym: 0.030
- Average RG: 2.8 of 10
- Hook Potential: 170 (Scale 10-175)
- Length: 100 (Scale 25-235)
- Typical Breakpoint Shape: 85 Angular (Scale Smooth Arc 10-Angular 100)
- Flare Potential: 0.056 High (Scale Low 0.00-High 0.060)
- Description: Coverstock: Introducing Propel™ coverstock the next extension in Brunswick coverstock technology. Propel is a evolutionary coverstock developed by Brunswick to improve the mid-lane and backend traction of the ball on today’s slicker oils and lane surfaces. The Propel coverstock was discovered through testing of new formulation additives and process changes in coverstock manufacturing. Core: M.A.C.E. – Mechanical Asymmetric Core Engineering. The MACE™ core has three major benefits, Ultra Low RG core system to engage the Propel 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. Ball Motion: The Siege™ unites the new Propel 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!!
Avg. Customer Rating:4.1 stars
(based on 14 reviews) Reviewers described themselves as: League bowler (13), Competitive athlete (1)
  • Pros
    • Comfortable grip (9)
    • Great weight (8)
    • Flawless surface (7)
    • Attractive (6)
  • Cons
    • Ugly graphics (2)
  • Best Uses
    • Local bowling alley (13)
    • Tournaments (8)
    • Upgrade (4)
Already own the Brunswick Siege bowling ball? Write a Review REVIEWED BY 14 CUSTOMERS sort by:
Displaying Reviews 1-10 of 14View All 14 Reviews
Displaying 14 Reviews
[3 of 3 customers found this review helpful]
This ball is excellent By Swagg from Roanoke Rapids, NC
Reviewed on: 7/30/2009 Unverified Pros:Comfortable Grip, Attractive Design, Great Weight, Flawless Surface Best Uses:Tournaments, Local Bowling Alley Describe Yourself:League Bowler Bottom Line:Yes, I would recommend this to a friend The Seige by Brunswick is the first ball I bought for myself. It holds the line very well. I just began bowling about 6 months ago so im not very experienced but with the great reaction on the back end I bowled my first 700 series with it. 281,243,235. All in all I love it. Was this review helpful to you? Yes / No- You may also flag this review.

[7 of 8 customers found this review helpful]
best new bowling ball on the market By randy rhino from sanjose ca
Reviewed on: 7/18/2009 Verified Reviewer Pros:Destroys pins on contact, Attractive Design, No 10 pin taps, Great roll on ball, Flawless Surface, Comfortable Grip, Great Weight Cons:Flawless ball in making Best Uses:League Play, Local Bowling Alley, Tournaments, Upgrade, Practice sessions Describe Yourself:League Bowler Bottom Line:Yes, I would recommend this to a friend I just got this ball from my local pro shop and have averaged 245 for the fisst 2 weeks. In my practice sessions I averaged 250 per game.This ball starts down the lane and holds the line and has great back end hitting power.I never get any corner pin taps and it destroys all pins.Even on dry lanes just move 5 boards left and you are back in the pocket with the same hitting power. If you are looking for the hardest hitting ball on the market,this is your ball Was this review helpful to you? Yes / No- You may also flag this review.

[6 of 7 customers found this review helpful]
Improved average by leaps and bounds By Marty from Aberdeen, MD.
Reviewed on: 8/29/2009 Verified Reviewer Pros:Great Weight, Attractive Design, Flawless Surface, Comfortable Grip Best Uses:Local Bowling Alley Describe Yourself:League Bowler Bottom Line:Yes, I would recommend this to a friend I am a 195 average bowler. My first practice game was a 246 with no 10 pins left standing. My first 3 game league series was a 771 with no 10 pins left standing. If you hit your mark the ball will do the rest driving the pocket straight through the 17.5 board resulting in ten in the pit. Was this review helpful to you? Yes / No- You may also flag this review.

[4 of 5 customers found this review helpful]
This ball should be used in a war! By Gumpers from Ocean Springs, Mississippi
Reviewed on: 8/28/2009 Verified Reviewer Pros:Attractive Design, Comfortable Grip, Flawless Surface, Great Weight Best Uses:Local Bowling Alley Describe Yourself:League Bowler Bottom Line:Yes, I would recommend this to a friend Ever since I got this ball I have had to move in alot, but it has most deffinantly improved my game drastically. Was this review helpful to you? Yes / No- You may also flag this review.

[4 of 5 customers found this review helpful]
great ball By Joe from Monroe,NY
Reviewed on: 10/14/2009 Unverified Pros:Attractive Design, Comfortable Grip, Great Weight, Flawless Surface Cons:None Best Uses:Tournaments, Upgrade, Local Bowling Alley Describe Yourself:League Bowler Bottom Line:Yes, I would recommend this to a friend First game after drilling 223, first series was 691. Was this review helpful to you? Yes / No- You may also flag this review.

[3 of 5 customers found this review helpful]
siege By bry from taylor,MI
Reviewed on: 7/23/2009 Unverified Best Uses:Local Bowling Alley Describe Yourself:League Bowler Bottom Line:Yes, I would recommend this to a friend very aggressive ball.....hits like a tank be prepared to move inside....alot Was this review helpful to you? Yes / No- You may also flag this review.

[2 of 4 customers found this review helpful]
performance lacking By stan from Kent Washington
Reviewed on: 1/6/2010 Unverified Cons:Ugly Graphics Describe Yourself:League Bowler Bottom Line:No, I would not recommend this to a friend I was looking for a ball that would perform on oily lanes, this ball was a total waste of money. First, the Brunswick said to drill 3" - 4" inches from the pin, but their certified driller said that the manufacturer specs. are all wrong and he drilled the fingers right on the pin. This ball gave me nothing even on regular surfaces. Stay with the Max Zone or some other product. Still looking for a ball that works on lanes oiled clear to the pins. Was this review helpful to you? Yes / No- You may also flag this review.

[2 of 4 customers found this review helpful]
All pro shops read this!!!!! By Dave's Pro Shop from New York
Reviewed on: 12/14/2009 Unverified Best Uses:Local Bowling Alley, Tournaments, Upgrade Describe Yourself:Pro Bottom Line: To all pro shop owners...in case you don't know yet, or haven't found out (the hard way as I did), DO NOT DRILL INTO THE PIN on this ball!. I have drilled pins on many balls in the past with no problems. The Seige has a steel pin under the colored pin and is undrillable. I have ruined a $40 bit and a [$] ball. Upset, you better believe it as there is no mention of this from Brunswick. Once I get done plugging and redrilling, maybe I can find out if it's a good ball or not! Was this review helpful to you? Yes / No- You may also flag this review.

[1 of 2 customers found this review helpful]
great ball, nasty!! By phil from mizzou
Reviewed on: 2/5/2010 Unverified Pros:Great Weight, Comfortable Grip, Attractive Design, Flawless Surface Best Uses:Upgrade, Tournaments, Local Bowling Alley Describe Yourself:League Bowler Bottom Line:Yes, I would recommend this to a friend writing this for the real bowler in the family.. my daughter! one of the best around.. was usually around 600,leaving solid ten pins. changed to this full roller layout. started ripping off 650,s and above. very rare 10 pins any more. nothing but noise when this thing hits. great ball.!!! Was this review helpful to you? Yes / No- You may also flag this review.

[1 of 3 customers found this review helpful]
Overall So So Ball By Bryan from Taylor,MI
Reviewed on: 11/25/2009 Unverified Best Uses:Local Bowling Alley Describe Yourself:League Bowler Bottom Line:No, I would not recommend this to a friend I picked up the Siege when it first came out...and at first it was Hook in a Box; which most new bowling balls are' however not far into the future my ball soaked up tons of oil and had a less than desireable reaction.....it hits decent but I found it easier to get to the pocket with diffrent equipment.... Was this review helpful to you? Yes / No- You may also flag this review.

Next ball will be wicket siege By soybones from Muscatine Iowa
Reviewed on: 5/14/2011 Verified Reviewer Pros:Comfortable Grip Best Uses:Local Bowling Alley, Tournaments Describe Yourself:League Bowler Bottom Line:Yes, I would recommend this to a friend I want to say this ball has been such a great addition to my bowling, Since Ive started using this ball my ave has been 216, I have bowled 1 Perfect game with it and several 700s. Im not just an average bowler, Im in the Elite catorgory. Thanks so much Scott Was this review helpful to you? Yes / No- You may also flag this review.

Good bang for the buck By ATM from Round Rock TX
Reviewed on: 1/29/2010 Unverified Pros:Comfortable Grip, Great Weight Best Uses:Local Bowling Alley Describe Yourself:League Bowler Bottom Line:Yes, I would recommend this to a friend This is a great ball out of the box. It makes up for a lot of your mistakes if you don't hit your mark. Please keep in mind that you must keep this ball clean or it will lose a lot of response on the backend. But once you clean it and hit your mark watch the pins fly. Was this review helpful to you? Yes / No- You may also flag this review.

Great BAll out of the box By Donte from Port Saint Lucie Fl
Reviewed on: 1/8/2010 Verified Reviewer Pros:Flawless Surface, Comfortable Grip Best Uses:Tournaments, Local Bowling Alley Describe Yourself:League Bowler Bottom Line:Yes, I would recommend this to a friend This ball was just as advertised. Great! All you have to is hit your make and the ball will do the rest. I purchased this ball at my local pro shop Bowling Solutions in Port Saint Lucie Fl. had it drilled aggressive went out the first night shot a 727 I am a 190 bowler. can not wait until next league night. Was this review helpful to you? Yes / No- You may also flag this review.

flawless surface By double j from cincinnati ohio
Reviewed on: 1/9/2010 Verified Reviewer Pros:Great Weight Cons:Ugly Graphics Best Uses:Tournaments, Local Bowling Alley Describe Yourself:League Bowler Bottom Line:Yes, I would recommend this to a friend I have been bowling for years I throw a back up ball most of my balls turn great but some of the lanes I bowl on and now going to heavy oil so I needed a new gun to shoot and to me it a rocket eats up the oil and keeps on going. 7pin still a little problem it will come with time Was this review helpful to you? Yes / No- You may also flag this review.