Well you can certainly shoot the gun. Given the difference in bullet diameter between what it was made for and what you're going to be shooting in it, I don't know how happily you'll be shooting it. The next thing I don't know is the actual effect of that difference when it comes to where the bullet hits vs. where you wanted it to hit. It ain't like the bullets are going to rattle down the barrel, but they for sure won't fit like they're supposed to.

Ralph Tremaine