Track
503A
PatternStTwCr
Oily:447
Medium:9.59.59.5
Dry:875
Sport:666

(1-10 in order of Stroker (ST), Tweener (TW), Cranker (CR))

Coverstock Info
Name:
Gen MA (Moderate Angle)
Type:
Reactive Pearl
Box Finish:
800 / 1000 / 2000 Abralon / Powerhouse Factory Finish Polish
Color:
Black / Purple / Red
Core Info
Name:
NA
Type:Asymmetrical
RG:2.51
Total Diff:0.057
Int. Diff:0.003

The Track 503A joins the 503T and 503C to complete the trilogy of the Packman core. This core is surrounded with the new Gen MA coverstock The Moderate Angle cover is a less aggressive cover than the Gen XA shell used on the 706A.

This combination matched up best on our medium test pattern. All three testers whacked this pattern pretty well. The 503A cleared the front and made a big move at the breakpoint. This gave us the best angle to strike. We had push on shots...

To read the full review, please visit:
https://www.bowlingthismonth.com/bowling-ball-review/track-503a/

Performance Ratings

NameValueComments
Torque
(1-10)
7
The 503A falls into the skid/flip category of ball reaction. This ball clears the front using hardly any energy at all.
Length
(1-25)
16.5
The pearlized polished cover skates through the front part of the lane. Even as we broke down the test patterns, the 503A never had problems clearing the heads.
Back End
(1-20)
16
The 503A makes quite a move at the back end. If the pattern offers enough friction, this ball stores the energy to get back from nearly anywhere.
Total Hook
(1-100)
49
The majority of the total hook of the 503A occurs between the breakpoint and headpin. This ball can cover most medium patterns rather easily.

Strengths: The skid/snap nature of the 503A is its strongest asset. Bowlers who like to see a ball go long and flip hard will want to look into the 503A.

Weaknesses: Heavy volumes of oil will keep the 503A in the bag. There are better options in the Track line to handle these types of conditions.

Overall Summary: The 503A falls between the 300A and the 706A in the ball motion line. This is the closest thing we have thrown to replace the 505A from years ago.