If the weapon has an energy of less than 7.5 joules, then it is a free weapon and does not have to be presented to the firing office. The barrel diameter does not matter. The marking on the rifle (F in a pentagon) is sufficient.
If the weapon has an energy of less than 7.5 joules, then it is a free weapon and does not have to be presented to the firing office. The barrel diameter does not matter. The marking on the rifle (F in a pentagon) is sufficient.