1. all guns muzzle speed are differents, remember each gun also can has same size bullet but in different weight. so the speed also will be different.
2. hand gun normal speed is 1100 fps to 1600 fps.
2 1/2. nobody can intent to run for the bullet. hand gun or rifle. you didn't get hit just because you lucky.
5. 56mm muzzle speed is 3840 fps.