Initial velocity dual core golf ball

A golf ball comprising a core and a cover layer, wherein:

• the core comprises a solid center and an outer core layer and has an outer diameter of less than about 1.62 inches;
• the cover layer comprises an inner cover layer and an outer cover layer, the outer cover having a material hardness of no greater than about 58 Shore D;
• and wherein
• at least one of the core or outer core layer comprises a blend of high-Mooney-viscosity rubber, high-Mooney-viscosity rubber regrind, and balata.

A golf ball comprising a core and a cover layer, wherein:

• the core comprises a solid center comprising high-Mooney-viscosity rubber and an outer core layer, and has an outer diameter of between about 1.4 and about 1.62 inches;
• the cover layer comprises an inner cover layer and an outer cover layer, the outer cover having a material hardness of no greater than about 58 Shore D, and the inner cover layer has a material hardness of less than about 72;
• and wherein
• the outer core layer comprises a blend of high-Mooney-viscosity rubber regrind and balata in an amount sufficient to increase the resilience.

A golf ball comprising a core and a cover, wherein:

• the core has an outer diameter of no greater than about 1.62 inches;
• the cover comprises an inner cover layer and an outer cover layer, the outer cover layer having a material hardness of less than about 60 Shore D;
• at least one of the core or the cover comprises a high-Mooney-viscosity rubber regrind, or a mixture of a high-Mooney-viscosity rubber regrind and a high-Mooney-viscosity rubber;
• and
• at least one of the cover layers comprises a polyurethane composition comprising a reaction product of at least one polyisocyanate, a polyol, and at least one curing agent.

A golf ball comprising a core and a cover, wherein:

• the core has an outer diameter of no greater than about 1.62 inches;
• the core comprises a center and at least one outer core layer;
• the cover comprises an inner cover layer and an outer cover layer, the outer cover layer having a material hardness of less than about 60 Shore D;
• and
• at least one of the center or the outer core layer comprises a high-Mooney-viscosity rubber regrind, or a mixture of a high-Mooney-viscosity rubber regrind and a high-Mooney-viscosity rubber.