- Initial Statement of Beneficial Ownership (3)

FORM 3	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES	OMB APPROVAL OMB Number: 3235-0104 Expires: February 28, 2011 Estimated average burden hours per response... 0.5
	Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940

1. Name and Address of Reporting Person ^*

Knobel Jeff A

2. Date of Event Requiring Statement (MM/DD/YYYY) 4/28/2010

3. Issuer Name and Ticker or Trading Symbol

BALL CORP [BLL]

(Last) (First) (Middle)

10 LONGS PEAK DRIVE

4. Relationship of Reporting Person(s) to Issuer (Check all applicable)

_____ Director _____ 10% Owner
___ X ___ Officer (give title below) _____ Other (specify below)
Treasurer /

(Street)

BROOMFIELD, CO 80005

(City) (State) (Zip)

5. If Amendment, Date Original Filed (MM/DD/YYYY)

6. Individual or Joint/Group Filing (Check Applicable Line)

_ X _ Form filed by One Reporting Person
___ Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Beneficially Owned
1.Title of Security (Instr. 4)	2. Amount of Securities Beneficially Owned (Instr. 4)	3. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	4. Nature of Indirect Beneficial Ownership (Instr. 5)
Common Stock	65.3577	I	401K ⁽¹⁾
Common Stock	610.8203	D

*Table II - Derivative Securities Beneficially Owned ( e.g.* , puts, calls, warrants, options, convertible securities)**
1. Title of Derivate Security (Instr. 4)	2. Date Exercisable and Expiration Date (MM/DD/YYYY)		3. Title and Amount of Securities Underlying Derivative Security (Instr. 4)		4. Conversion or Exercise Price of Derivative Security	5. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 5)	6. Nature of Indirect Beneficial Ownership (Instr. 5)
1. Title of Derivate Security (Instr. 4)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares	4. Conversion or Exercise Price of Derivative Security		6. Nature of Indirect Beneficial Ownership (Instr. 5)
Deferred Compensation Company Stock Plan	⁽²⁾	⁽²⁾	Common Stock	234.6228	⁽³⁾	D
Restricted Stock Units	⁽⁴⁾	⁽⁴⁾	Common Stock	2300	⁽⁴⁾	D
Stock Appreciation Rights (sars)	⁽⁵⁾	1/28/2019	Common Stock	1750	$40.08	D
Stock Appreciation Rights (sars)	⁽⁵⁾	1/27/2020	Common Stock	1200	$50.45	D
Stock Option (iso) (Right to Buy)	⁽⁶⁾	1/28/2019	Common Stock	1750	$40.08	D
Stock Option (iso) (Right to Buy)	⁽⁶⁾	1/27/2020	Common Stock	1100	$50.45	D
Employee Stock Option (Right to Buy)	⁽⁶⁾	4/22/2013	Common Stock	3000	$28.155	D
Employee Stock Option (Right to Buy)	⁽⁶⁾	4/28/2014	Common Stock	5250	$34.11	D
Employee Stock Option (Right to Buy)	⁽⁶⁾	4/27/2015	Common Stock	2500	$39.74	D
Employee Stock Option (Right to Buy)	⁽⁶⁾	4/26/2016	Common Stock	3000	$43.69	D
Employee Stock Option (Right to Buy)	⁽⁶⁾	4/25/2017	Common Stock	2400	$49.32	D
Employee Stock Option (Right to Buy)	⁽⁶⁾	4/23/2018	Common Stock	2400	$50.11	D

Explanation of Responses:
( 1)	Total number of 401(k) Plan shares includes shares acquired through periodic dividend reinvestment, participant's contributions and employer matching contributions.
( 2)	Stock units in Ball Corporation's Deferred Compensation Company Stock Plan are distributed upon the separation of service in accordance with the Plan.
( 3)	Each unit may be settled for a single share of stock or the equivalent amount of cash pursuant to the Ball Corporation Deferred Compensation Company Stock Plan.
( 4)	Restricted Stock Units awarded under the Stock and Cash Incentive Plan. Each restricted stock unit represents a contingent right to receive one share of Ball Corporation Common Stock.
( 5)	A stock appreciation right ("SAR") entitles its holder, upon exercise of the right, to receive from the issuer, in cash or common stock, an amount equal to the "spread" on the right (i.e. the amount by which the market price of the underlying stock exceeds the exercise price). SARs are exercisable beginning one year after the grant in 25% increments and thereafter annually upon the anniversary of the date of the grant of the SAR.
( 6)	Shares exercisable beginning one year after grant in 25% increments and thereafter annually upon the anniversary of the date of grant of the stock option.

Reporting Owners
Reporting Owner Name / Address	Relationships
Reporting Owner Name / Address	Director	10% Owner	Officer	Other
Knobel Jeff A 10 LONGS PEAK DRIVE BROOMFIELD, CO 80005			Treasurer

Signatures
/s/ Robert W. McClelland, Attorney-In-Fact for Mr. Knobel		5/4/2010
^** Signature of Reporting Person		Date

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
*	If the form is filed by more than one reporting person, see Instruction 5(b)(v).
**	Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note:	File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
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