BE58 pilot reported an near midair collision with NORDO pattern traffic.

Attributes
ACN	1655583
Time
Date	201906
Local Time Of Day	0601-1200
Place
Locale Reference	ZZZ.Airport
State Reference	US
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Make Model Name	Baron 58/58TC
Operating Under FAR Part	Part 91
Flight Phase	Initial Approach
Route In Use	Direct
Flight Plan	None
Aircraft 2
Make Model Name	Small Aircraft
Operating Under FAR Part	Part 91
Flight Phase	Initial Approach
Person 1
Function	Pilot Flying Single Pilot
Qualification	Flight Crew Multiengine Flight Crew Instrument
Experience	Flight Crew Last 90 Days 5 Flight Crew Total 2500 Flight Crew Type 1000
Events
Anomaly	Conflict NMAC Deviation - Procedural Published Material / Policy
Miss Distance	Horizontal 300 Vertical 200

Narrative:

Leaving ZZZ for missed approach and returning for second GPS approach heading approximately 180. The plane was on autopilot and altitude hold. Traffic alert on GN750 indicated traffic 400 above and to pilots left. I pass behind and below aircraft. After passing aircraft; I made a 180 degree turn to the right to intercept the approach. As I was finishing the 180 degree turn I notices the other aircraft had descended into my flight path. I continued my turn to pass behind and under the other aircraft. At this point the other pilot waggled his wings. The pilot then began a climb. I passed under and behind the aircraft. The pilot contacted me on ZZZ unicom and accused me of a climbing turn into him.

Original NASA ASRS Text

Title: BE58 pilot reported an NMAC with NORDO pattern traffic.

Narrative: Leaving ZZZ for missed approach and returning for second GPS approach heading approximately 180. The plane was on autopilot and altitude hold. Traffic alert on GN750 indicated traffic 400 above and to pilots left. I pass behind and below aircraft. After passing aircraft; I made a 180 degree turn to the right to intercept the approach. As I was finishing the 180 degree turn I notices the other aircraft had descended into my flight path. I continued my turn to pass behind and under the other aircraft. At this point the other pilot waggled his wings. The pilot then began a climb. I passed under and behind the aircraft. The pilot contacted me on ZZZ UNICOM and accused me of a climbing turn into him.

Data retrieved from NASA's ASRS site and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.