The problem is that there are some who don't realize that a maxed 300 weapon vs a maxed 331 weapon will do the same exact damage against a level 30 enemy. In the case of oracles, the one with oracle disruptor is going to do more damage due to the perk. You have to look at it like this - the first 2 digits in the attack power is the level you will do the maximum possible damage with that weapon against before taking into account player/enemy level difference. Anything higher than that enemy's level will not yield more damage to it, it just means you're still able to deal the maximum possible weapon damage (which is based off impact for most weapons), hence why a (33)1 without oracle disruptor will not do more damage than a (30)0 with oracle disruptor in VoG. EDIT: After more testing with 300 vs 331 AP weapons with same impact, the difference in damage to normal level 30 enemies at same range is roughly around 200 damage. This is primary weapons. I did not test snipers, MG's, etc. The oracle disruptor perk provides 500 bonus damage so you'd be doing almost 300 more damage against oracles with a 300 AP weapon with perk over a 331 AP weapon without perk.