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Hammer Zero Mercy Pearl

Photo and specs courtesy of Hammer. Reproduced with credit to the maker.

How it moves

Foul lineArrows · 15 ft48 ft · board 5.58.5° entry
Hockey-stick turn (asymmetric core). Dotted is skid, then the turn, then the roll into the pocket. Estimated from the coverstock, finish, core, and differential for a right-handed bowler with medium revs on a house shot. Lane conditions, speed, and layout move all of this.
Hammer

Zero Mercy Pearl

Hook potential7 est.7 of 10, estimated

How much the ball wants to hook, 1 (straight, a spare ball) to 10 (the strongest oil-eaters). The maker publishes no number for this ball, so this is estimated from the coverstock, core, finish, and differential.

Coverstock
HK22C² Pearl
Reactive pearl
Core
Super Offset
Asymmetric
Factory finish
500, 1000, 1500 Siaair / Factory Compound
Color
Silver / Orange / Black
Released
2025-11-20
USBC
Approved 2025-10-14

Weights and specs

WeightRGDifferentialInt. diff
12 lb2.590.0410.014
13 lb2.600.0410.014
14 lb2.540.0530.020
15 lb2.520.0530.020
16 lb2.540.0450.017