Heer, a left handed shooter, was from Concordia, KS and won the Mid-Winter Tournament at Kansas City in 1904 using a C.E.O. by the score of 473-500. He won the Consolation Handicap at the 1904 G.A.H. in Indianapolis by a score of 98 out 100 from the 20 yard mark, shooting U.M.C. shells. He was high average at the Ohio State Shoot, breaking 505 out of 525. At Des Moines March 16-17, 1905 he set a new world's record breaking 307 targets straight and broke 594 of 600 targets. He won the National Yearly Average Championship in 1906 at 96.3 per cent of 14,055 targets.