Sam1911
Moderator Emeritus
Is this a question? If so, no you can't shoot a .40 round through a .357 barrel! Or at least you REALLY shouldn't.i have pro 2340 in 357 sig can shoot 40 cal without changing barrel looks really close ... if not where can i find a barrel in 40 cal
Midway has conversion barrels though: http://www.midwayusa.com/product/26...ig-to-40-s-and-w-1-in-15-twist-386-steel-blue