But you got primary ammo finder.
Only time I find it handy is if I'm using malfeasance. I got through bullets like candy in PvE or gambit.
I only keep those if they have paired perks with a potential primary weapon that may not get much ammo, sniper and shotgun primaries. Any other primary ammo finder perk gives you an easy deletion and 3 legendary shards.
I was being sarcastic :)
At least they finally changed some of the exotics in collections to have special ammo finder .....