No, 25 yards is not too far. Back in the day, P.O.S.T. in Louisiana mandated from 3 yards to 25. 25 yards included both left and right barricade as well. And LOTS of people not only qualified, but shot close to 120 (a perfect score with all in the 9 ring or better). "Master" rating included shooting to 50 yards. Below is a recent range session, with my now 60 year old eyes, and a mirror of my Jurrasic duty weapon, a 4" S&W Model 66. 25 yards double action slow fire, unrested. I had much better eyes at 21-35 yoa. 25 yards, or longer, should be in your toolbox.