When I bought my 686 the only ammo I had in .38 Special for target was American Eagle 130g FMJ. I could barely keep it on the paper at 25yds. It shot fine in other guns. I was ready to sell the 686. Then I tried other ammo, including my own reloads, and it shot very accurately. I find WWB .38 Special from Wally World to be very accurate thru it. So, my advice is to try a variety and stick with what your particular firearm likes best.