I have some of this ammo for a .40 Sig P239 in 180 grain. It was suggested by a guy at my gun store.
Upon getting it home and reading the label more carefully (yes, I should have done this in the store) I see that it is designed for TWO INCH barrels.
My 239 has a 3.6 inch barrel. I have not been to the range yet to try it since buying it.
Will it be inappropriate for that gun? What performance change would there be over regular gold dot defensive ammunition?
The more I read the more unclear I am on how it might affect things.