Gunnewick Custom Harvest, Inc. Custom Harvesting Contact Information Phone: (806) 647-5676 Address: 2050 County Road 520, Hart, Texas 79043 Get Directions About Gunnewick Custom Harvest, Inc. is a custom harvesting service located in Hart, TX. Loading... No Records Found Sorry, no records were found. Please adjust your search criteria and try again. Maps failed to load Sorry, unable to load the Maps API. Claim Listing Recently Viewed: Loading...