Your bullets will work fine, tanfoglios have a pretty deap chamber. I run exactly the same OAL as you for my stock 2 and limited and have never had a problem with either feeding or accuracy. Congrats on the new blaster, you picked a really cool one!
Best advice I got from a long time shooter was "if you're getting all A's you are not going fast enough but you can't out run a MIke"...By the sound of everything discussed above your gun handling and transitions are leaving time on the clock. Those are alot easier to fix than accuracy!