A couple of things to notice on this photo.  The shooter in the light color jacket to the left of the banner has a chest full of medals.  The shooter sitting in the middle has a very heavy barrel Hepburn.  Also note the top of the pole the banner is on is shaped like a loaded cartridge.

This is another pic from the newspaper article;

Courtesy of the San Antonio Conservation Society Foundation;

Description; A group portrait of members of the Schuetzen Verein. A group of men all holding rifles standing or siting around a sign advertising the "Kuhbauer Quintet." A pavilion is visible in the background and a field is beyond a fence to the left.

Notes; On the back: standing left of banner: Mr. Arthur Guenther, standing left: Mr. Hoefflin, sitting back row, left to right: Mr. Hans Degner, Dosch, Neumann "Shorty" Altman, Steve, Gus Geisecho, sitting front row: Albert Steves, Sr., next unknown, Chas. F. Hummel, Edward Dreiss, next two unknown.

Accessioner note: An article from the Sunday, Sept. 14, 1980, issue of the San Antonio Light is pasted on the back. It reads: "Most of the members of the San Antonio Schutzenverein, or shooting club, pictures in the From the Light Files feature of Sept. 7 have been identified. 
Among those identified as being in the photograph include Arthur Guenther, Hans Degner, Capt. E. Dosch, Robert Neuman II, Gus "Shorty" Altmann, F. W. Stuve, Gus Geisecho, Albert Steves Sr., Charles F. Hummel and Edward Dreiss.
The identifications were made by Albert A. Oughton.
He said the club existed at the turn of the century. After it disbanded, some of the members joined the Kirby Shooting Club, of which he was a member.
Oughton, who was a friend of Neuman's son, Alvin Neuman, said he now owns Neuman's rifle. Alvin inherited the rifle after his father died, Oughton inherited it after Alvin Neuman died about 12-15 years ago. Oughton said that the club members were all good shooters. They would shoot at a paper target, which had a bullseye 1 1/4" in diameter, from 100 yards, and scored high marks. Oughton, who is now 72, said he was the youngest member of the Kirby club, and the members who had been in the Schutzenverein were "quite a bit older than I." He said the photograph was taken around the turn of the century, and he did not begin shooting until about 20 years after that....