Talk:12cm 30-tube Rocket Launcher/@comment-2A02:A441:3498:0:65F9:91DF:40B8:1221-20200207152325/@comment-145.53.88.193-20200207185722

10 40 20 20 should work; 10 40 40 20 if you want to be absolutely safe (many AA equips have best drop rate with fuel/steel as highest input).

Or you can use the "shells" recipe shown above to have a chance for this in addition to shells.