I washed down the 25m indoor range at the weekend to remove grease etc.

A fellow club member this evening, used a .44 revolver BP with pre-lubed wads and 24gr of BP. After approx 30 shots the floor in front of the firing point was thick with grease and powder residue!

Previously we have had BP revolver users firing all night with only some very mild grease and powder residue deposited on the floor.

Is the firer using too much powder for 25m and if so what is the ideal load for this range?

What else could be causing this problem?