Diameter of .38 caliber bullets.

[flyboy]

Following a discussion on another forum, I miked the handgun bullets I have on hand. Remington Golden Sabers,  Speer jhps, Hornady swaged swchp, Berry's 125 gr. hp,  and a local caster's 158gr. swc bullets All miked .355-.3555, with a few nudging .356.  That's both jacketed and cast bullets. 

Unless I am confused, that is the recommended diameter for 9mm, and does nothing good for accuracy in the .38 caliber, which should mike .357-358.

Hornady has agreed to replace their box of bullets.   Am I off base, or are manufacturers now selling undersized, 9mm bullets, passing them off for both 9mm and .38 projectiles?

Has anyone experienced the same problem?
 

[wgr]

have you checked your mic. jacked bullets should be .357 i size my cast to.358.   .355 is under size for 38/357. would be real unusual foe that many different brands to be under size at the same time.

[flyboy]

Yes: Thanks for the suggestion. I was undone by an inaccurate caliper.

I checked  with  a micrometer, and all sizes were proper.

I just hate it when that happens!  I should have been suspicious when 4 manufacturers' bullets were all undersize by the very same amount.

Ah, well, live and learn.