9mm to .38 super

First topic message reminder :

I have a Springfield loaded 9mm I was wondering what it would take to convert to .38 super. Would I just need to have .38 super mags and have a barrel fit?

Rechambering a 9mm to 38 Super, from SAAMI chamber dimensions. Reference of .150 from the breech face as a conservative point at which the walls are thinned out, .0035 larger in diameter. I doubt there'd be an issue with over working of the brass.





Of course this is just theory from the spec's. Dimensions are minimum chamber. Tolerance for both is +.004. So if you had a fat 9mm and ran a min 38 into it, there'd be more 9mm left.




I was surprised to see the 38S doesn't have a shoulder for the case mouth, just a leade from case diameter like quite a few of the old rifle cartridges.