It is COR not Core. Coefficient Of Restitution.
.47/500
The core rating on a softball refers to the bounce. For example, hold a core .44 in one hand a .47 in the other and drop-em. The core .47 will bounce higher. The major difference in the balls is the compression rating. The higher the compression, the harder the ball. Hard ball = more distance. Standard fastpitch is core .47, compression 375.
USSSA rules/bylaws - 9 year olds are 44 feet. 10 year olds are 46 feet. Most leagues and associations are the same. Some recreational leagues will have 9 year olds at 42 feet.
The best way to solve this is by a ratio: 14/X = 44/100 44X = 1400 X = 1400/44 X = 31.819 (approximately)
44 mag
drew brees
Cor is the center of the softball. With the different sizes .47 or .44 these are the size of the cor inside the ball. How it affects the ball is the cor is like the sweet spot. You know how a bat has a sweet spot....well a ball has the same thing. The size is important because the bigger (.47) the sweet spot the better chance you have of hitting it and it making solid contact. So a bigger sweet spot is easier to hit and will like make the ball travel rather and faster.
Eye for an Eye - 2003 Mama Knows Best 3-44 was released on: USA: 2005
Best left to a gunsmith.
Travis Best is 44 years old (birthdate: July 12, 1972).
It is very close to 7 cm. Circumference = pi (2r) c = 6.2832 r = 44 44/6.2832 = 7.003