I do HFT and benchrest indoors 20 and 25 yards.
I use two seperate rigs.
HFT I use a DS Panther with a Bushnell 6500 2.5 - 16 x 42
Benchrest I use a Ripley AR5s with a Tasco Classic 10-40x50.
IMO with both disciplines most guns will out perform the shooter, but the scope does make a big difference.