I tested out some different .40 S&W ammo the other day. Although I usually use my reloads I like to know which factory ammo can also be used. I seldom have reliability problems with centerfire ammo but accuracy is frequently a problem.
I was very pleased to discover that Federal RTP40180 (RTP => Range Target Practice) did well in my STI DVC Limited. The two groups below are offhand at 10 yards and 25 yards:
The groups are small enough I believe about half of the group size is due to user error. Compare this ammo to other ammo I have tested in the same gun here.