I just received an some 38 cal 158 grain (.355 dia)SJHP bullets from Graf and sons.I am getting ready to load some.I bought them at a good price.I would like to load them in a 357 mag case.After reading some forum posts I see .355 dia is a 9mm bullet?My ? is what should I do with them.I have 500 of them.

Buy a 9mm.

I would simply try and sell them and mark it down a a learning experience.

Curious, a 158g bullet is typicaly a weight used for the .38 / .357 where as 147g is more common for the 9mm. Could the bag be mismarked? Measure one with a caliper / mic. to confirm the diameter. If indeed they are .355" they most likely will not shoot very accurately out of your .38 spl.

graf sent me a summer sale flyer.They are made by prvi partizan 158 gn .355.they are marked 38 cal hollowpoint.I will be calling them tomorrow.This has got me confused.I have 9mm dies but I think they are to heavy.Measured them they are .355 Made in Serbia
http://www.grafs.com/retail/ca...orm_process%22%3B%7D

Diameter is important, you might only see the difference in a target firearm, my S&W M14 needs a swaged .358 lead bullet to perform, .357 dia. not as accurate.

I shot some 355 115 grs in my 357 they were ok.

One must use a 355 expanding plug or they well be too loose in a 357/38 case.

I did it just to see how it works haven't done it after wards.

I tried them in my .38 Super. It shoot .358 bullets fine, but delivered shotgun patterns with .355 bullets.

In the '60s, when I started reloading they recommended .355" bullets for Colt revolvers in 38/357. Maybe your bullets were intended for Colt reloaders.

Some revolvers (a lot of colts) run a tighter groove diameter and if your barrel is one of them they may work very well. Usually though, this is more of a problem with 45LC barrels and doubt a newer .357 will be sized so small. You can try them and see for yourself if they'll shoot, and if they don't just remember a good education doesn't come cheap.

Have you actually measured their diameter?