I have my range set at 10 yd increments to 75 yd.
Most of time with 8" remington 10 or 20 yds depending on the target.
I've always questioned the theory the pistols were made to be "spot" on at 75 yd.
More like 75 ft I would believe.
A minor waver of the barrel at 20yd is magnified many times over the farther out you go.
I use the 8 in remington and the 9" walker out to 30 yds.
Then I move up to the 44 carbine 18" barrel
Then the .50 cal CVA plains rifle or for really long shots th .54 sharps.