Pistol Bullets Reloading 357 sig and 40sw Berry Bullets vs Hornady????

[motrapper]

First I bought Hornady 10mm 155gr xtp bullets for my 40sw dia. states .400 which I believe is correct size for 40sw or 10mm
The box of Berrys 180 gr FP say Dia .401 and says 40sw/10mm why are they .001 larger? and is that ok?

Next bought 9mm 147 grain Berrys to load in my 357sig they state ,356 everything I read is 9mm or 357sig that the Dia should be .355

All advice welcome

 

[Seabeeken]

it Is normal as they are plated cast bullets which run larger than jacketed