I tested it and you’re right! It only changes mag capacity and not total ammo. So the extended rifle mag skill card means your character holds less mags but larger ones. This is crazy because I thought the number of mags didn’t change thus increasing total ammo as well. Here’s the zinger, I use to have nearly 1000 rounds in my lancers using the veteran class so was my skill card glitching out before to give me all that extra ammo or did an update change the way the skill card works?
I remember the exact number of rounds: retro = 600, regular lancer = 920. I think my extended rifle mag skill card was at level 5 (100% extended mag) when this was happening. These ammo totals are exactly double the rounds you normally get with those lancers. This may be a reoccurring glitch with the skill card specifically at level 5. Darn, I had to upgrade it to level 6. Just kidding, I’d rather play fair anyway.