He was selected by the Philadelphia Eagles in the fourth round of the 1971 NFL draft and played for one season for the team.
[3] In the season-opener in 1969 against the California Golden Bears, Feller kicked a 32-yard field goal in the third quarter and went two-for-two for extra point attempts.
[8] In the Red River Shootout against Oklahoma on October 11, Feller kicked two field goals of 27 and 21 yards and converted all three extra point attempts as the Longhorns beat the Sooners 27–17.
[13] Against the Texas A&M Aggies on November 27, Feller made a 43-yard field goal and converted four-of-seven extra point attempts.
[14] He converted on his only extra point attempt to give the Longhorns the win in the "Game of the Century" against Arkansas on December 6.
[15] In the Cotton Bowl Classic against Notre Dame on January 1, Feller went three-for-three for extra point attempts.
After leaving the NFL, Feller lived briefly in St. Louis and Dallas before returning to Austin, where he started a wholesale consumer electronics distribution company.