Cast bullet resizing 38sp, 9mm, 380acp

[ansan12001]

I have load data for 115gn cast bullets for 38sp (358), 9mm, 380acp.
Am I correct in thinking I can take 115gn 38sp cast bullets and resize them to use in 9mm and 380acp? What are my concerns? Does the lead hardness of a concern in resizing? Is 357 the correct resizer die for 9mm and 380acp?

Thanks!

[J-cat]

The size depends on your particular firearm's chamber and barrel dimensions. If you size too small you'll get leading. I have one 9mm right now that needs .358"/.359" bullets because the throat is .360".

[noylj]

A 0.358" cast lead bullet works fine in ALL my 9x19 guns.
I only shoot as-cast (unsized) lead bullets when I cast my own.

[Cowboy T]

A diameter of 0.355" is the nominal sizing for 9mm and .380 ACP. However, plenty of guns have slightly generous chambers, and as J-cat pointed out, you can get leading if your cast bullets are too small.

Regarding your cast bullets, you certainly can resize them, but I'd try out a few unsized ones first to see if they easily chamber as-is. You can do this by making up a few dummy rounds w/ no powder and no primer. The largest size that will still easily chamber is the size that you want.

Are you buying store-bought cast bullets, or are you casting your own?