No. You can get a Sig P229 that will fire .357 Sig, but that is not the same as .357 magnum.
Yes
Only the Coonan Arms .357 and .357 models of the Desert Eagle can do this.
You can shoot them in a .357 Magnum revolver, but that's about it.
No
You will have to define what "accurate" means to you. I've made shots out to 100m and seen shots made at 300m
Yes.. offhand, I know of two. Magnum Research made the Desert Eagle available in .357 Magnum, and Coonan Arms manufactured a semi-auto .357 Magnum, based on the M1911 pattern pistols.
Yes, you can shoot 38 specials through a .357 magnum revolver.
No. However, .38 Special ammo CAN be safely fired in a .357 Magnum firearm. Both cartridges use a bullet that is .357 in diameter- but the .357 magnum is longer, and more powerful.
Nope. 357 magnum cartridge is too long, and too powerful.
No. It is a fatter diameter than .357, and will not fit. The bullet diameter is .361, instead of .357.
NO,NO,NO,NO,NO.........you CANNOT shoot the 357 cartridge in a 38 special, but you can shoot a 38 special cartridge in a 357 pistol.................the 38 cal. cylinder was not made to house the 357 cartridge or take the pressure.............