Are you asking when the ball will start the breakpoint?? If so, usually around 40 feet.
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The perfect entry angle is 6º. Reffer to **MY SITE** http://csbowling.vze.com/clinicperfectstrike.shtml
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Edited on 1/2/2004 1:58 AM

Okay, its 6 degrees. Now where would the ball be when it hits the pocket. I mean into relation from the right side in inches. (Would assume its pretty close to the middle of the 1 and 3 pin or would it be closer towards the 1 pin.

I think the ball has to hit the 1 pin first?  

I am trying to draw a diagram for someone and show them what the perfect hit is.
As soon as I get this together, I will try to put it on a web page.

Yes, ball hits the head pin first..
For a righty, ball path is 1-3-5-9..

Please check all the links given above by other posters. You could find pretty much useful information about what you are asking for..

Strike point is on 17th board (with a proper angle which is stated as 6 degrees. It is correct but I may add that this proper angle may vary between 4 to 7 degrees according to the lane condition, rev rate, speed, axis rotation and axis tilt of a bowler)
This 17th board is exactly 2 - 1/2 inches off the center of the head pin. Head pin is centered on 20th board and pin is 4 boards wide. Make your own calculation

Regards,
Burak

http://mrcla.com/bowling/bowling-pres/sld007.htm

See this site and gives the postion and entry through the pins of the bowling ball.  Must see.

Full site is http://mrcla.com/bowling/bowling-pres/

Then we have this.

Did you know there is a "Perfect Strike?" Studies done by the ABC proved there is such thing!

 
„X   In a strike hit, especially a perfect strike, the ball only hits 4 pins - 1, 3, 5 and 9.
„X   The ball must hit the head pin precisely at the center line of the 1, 2, 4, 7 pin row.
„X   The ball must also strike the 3 pin precisely on the center of the row.
„X   The ball then continues through the rack to hit the 5 pin at the center of the 5-8 combination.
„X   The ball must then hit the 9 pin.



Notice that the Percentage of Strikes reaches 100% when the ball enters the pocket on the 17th or 18 board. That should be everyone's goal.

Well I had some free time and created a Full Size Bowling Lane (within 1000 inch accuracy) on a Program (VISIO). My virtual lane is only two dimensional but it has given a unique visual aid. This lane I created is 41.5 Inches across.

6 Degree Entry Angle Line: This line starts at the gutter at 45 feet 7 inch line to 2.5 inches right from the center of the head pin at 60 feet.
At 50 feet this line intersects just a little past the 5th board.
At 55 feet this line intersects just a little past the 11th board.


8 Degree Entry Angle Line: Line starts at the gutter at 49 feet 2.25 inch line.
At 50 feet this line intersects a little past the 1 board.
At 55 feet this line intersects a little past the 9th board.


4 Degree Entry Angle Line: Line starts at the gutter at 38 feet 2.75 inch line.
At 40 feet this line intersects a little past the 1 board.
At 45 feet this line intersects a little past the 5th board.
At 50 feet this line intersects a little past the 9th board.
At 55 feet this line intersects a little past the 13th board.


Just looking at this. The first question that came to mind was "Are the newer balls of today producing too high of entry angles?"

Now I know these are straight lines and a ball would move in an arching motion. Please someone correct me, I would assume that as the ball moves to the pocket after the break point the arching of the ball decreases as it would be losing energy when it hits dry.