If your discharger is adjustable, take it down to .9 volts per cell. If you are using long leads, try shorter leads. Under average circumstances, i'd say the same as Guver. Sounds about normal.

If you accept 2300 - 2400 as full capacity, then when you test it after using it for a while, consider this normal, and toss it when it drops below 80% to 85% of your accepted normal.