Has anyone else come across this problem? I have got a nice new Eyasluna which has 11 rounds in the mag by default. I have 2 perks on this gun; Extended Mag & Casket Mag. Both of these perks DO NOT! increase the default magazine size past 11 rounds. This leave me with 2 completely useless perks, I'm guessing this has happened because of the Hand Cannon nerf and they must cap at 11 rounds regardless of perks (With the exception of Hawkmoon).
Bungie if you are reading this, did you know this was an issue and when might it be addressed. Also please increase the ammo count of Hand Cannons, I run out of ammo in PVE far too quickly.