I check some recipe about this mod and see that:

recipe Open Box of .22 Ammo
{
22Box,

Result:22Bullets=10,
Sound:BoxOfRoundsOpenOne,
Time:15.0,
}

recipe Place .22 Ammo in Box
{
22Bullets=100,

Result:22Box,
Sound:BoxOfRoundsOpenOne,
Time:15.0,
}

100 bullet to box = 1 x 22box
1 x 22box = 10 bullet

is this normal?