For defense puposes I'd say you're ok. But most accuracy tests in the magazines are done at 25 yds. But this I guess is to keep all else equal. Now, me, I practice with my 8 3/8" barrel S&W 29 at 50 yds and my scoped Magnum Research BFR .45-70 at 100 yds. But with my Steyr M40 & Taurus 605 - usually about 10 - 15 yds & my 1911 usually 15 - 25 yds. When I shoot with the Judge, 10 yds is plenty. (I don't say practice with the Judge because you don't need to exactly have pinpoint accuracy shooting #6 and Winchester PD1 ammo.)