Imagine a line coming out of a blaster. If you keep an object in direct path of that line, it should hit the object and not you, whether the projectile traveling the line is traveling at one meter a second or a billion.
Without the force, you don't know when the shot's going to come out without reading the person's reflexes, or how much they'll pull the aim when they trigger the shot, so it is not as good and I would not recommend it, but it's still possible.