JR

Name Ball Coverstock Drilling Layout Core Weight RG Diff MB Diff Notes
JR Hammer Black Widow 2.0 Black Widow 2.0 Aggression Solid
Solid Reactive
Black Widow 2.0
Asymmetric
15 pounds 2.500 0.058 0.016
JR Storm Summit Summit TX-23 Hybrid
Hybrid Reactive
Summit
Symmetric
15 pounds 2.460 0.056
JR 900 Global Zen Gold Label Zen Gold Label Reserve Blend 801
Pearl Reactive
Zen Gold Label
Symmetric
15 pounds 2.490 0.051
JR Brunswick TZone Night Sky TZone (various colors) Polyester
Polyester
TZone (various colors)
Symmetric
15 pounds 2.715 0.019