It looks like all the magazines aft are misnumbered.
I have just assigned a correct number to each until correction from the designers.
Good catch. The Aft magazine numbers don't match up. They should read:
first number is 1d0, 2nd number 1d6
2,2 5 in Mgz. Aft #3 Hit (D)
3,6 5 in Mgz. Aft #4 Hit (D)
5,4 5 in Mgz. Aft #5 Hit (D)
These will be added to my next errata next week.