Just a note on derringers: I have found that about 50% of center fire derringers will group both barrels with the same ammo! I have an American Arms (now Bond) 357 that I shoot a 38 Special non +P 158 gr LSWC in the top barrel and a 357 STHP 125gr in the bottom, it groups about 4" at 21' with this combo, should I reverse it, it is about a 34" group!

All of my Davis 32's like Win STHP's. The High Standard 22 Mag. & Davis require Federal product #757 (50 grain HP) this was developed for short barrel pistols and revolvers. (the 39 grain rifle ammo is terrible!)

I also have an American Arms DA (looks like a big High Standard) in 38 Special, in the 20 years I've had it I never found an ammo or a combo that would group at 7 yards (strictly a belly gun!)

In the early 80's a LGS owner/friend had an original Remington 41 RF. At 10 feet it would bounce off of most wooden objects!

Ivan