will a 357sig mag work in my 40 s&w p239 with 40 ammo? or is it that one will say 357 sig and the other one will say 40 s&w and that is it. I just bought the gun and only have one mag and I am placing an order at cdnn and they only have the 357 mags. I am also considering buying a 357 sig barrel for it down the line and want to know if the same mags will work for both barrels.
thanks in advance.
thanks in advance.