Sir.
If you have a .44 mag., you should be able to shoot .44 Spec. in it. It does not work the other way.
.44 Mag. mostly likely has a heavy conture barrel, some .44 Spec. barrels are contured a little more slender.
.44 Mag is not real fun to shoot.
.44 Spec is fun to shoot.
Price on .44 Special is from cheap to very expensive, depends on manufacture, Model and age of gun. Similar to an equivalent .44 mag.
Bill@Yuma