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Columbia 300 Ran$om

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

How it moves

Foul lineArrows · 15 ft47 ft · board 57.8° 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.
Hook potential7.5 (est.)7.5 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
Super Tilt Pearl
Reactive pearl
Core
Full Swing V2
Asymmetric
Factory finish
800/1000/2000/4000 Abralon, Powerhouse Factory Finish
Color
Not listed
Released
2011-01-01
USBC
Approved

Weights and specs

WeightRGDifferentialInt. diff
14 lb2.530.0530.016
15 lb2.530.0550.016
16 lb2.530.0460.016

Surface

oil · laneCoarse grit
oil · laneCoarse and fine
oil · laneFine grit or polish
800/1000/2000/4000 Abralon, Powerhouse Factory Finish. Skims the oil and saves its energy for the dry part of the lane: longer skid, later and sharper hook. Polished and pearl balls. Surface changes over games, and a pro shop can take any ball either way with a pad.

Balls like this

Same coverstock and core type; the closest company for this ball in a bag.