70% overcharged anything you can support... your eff. vent beams nervously smoke in the corner...
There isn't really a "meta" for PvE, you fly whatever is effective/fun for you.
Beams are great for general PvE, easy to aim, huge mount is quite efficient, you don't need the high up-time of other lasers/MCs and the fall-off is less of a problem than it seems on paper. Personally I'd go Beams over MC simply because MCs have to be gimballed on such a big ship, which cuts a lot of your potential DPS. Add in the fact thermal straight up outperforms kinetic damage, and Beams come out everywhere execpt sustained fights against other large ships.
That being said, I love having a "skill-shot" aspect to my ships, so I'm currently running 2 Huge (Oversized) + 1 Large Efficient (DF) PA - the alpha damage is obscene, and she still runs on 2 WPIPs. Beams are effective, PAs are effective and fun.
Generally I'd say it depends, if you are going for more overwhelming dps, then MC would be the best, but if you simply want to be able to keep going and not worry about ammo, lasers, and they aren't bad in themselves.
I thought long range best for PA to increase projectile speed? I agree fun but not as much when you have 3 rail-eagles on you in CZ and you can't hit them for joke!
...everyone seems to love long range beams, i havent tried them. what is the attraction may i ask?
Tried that in beta.
Gread DPS and all that, but not comfortable. Two C4 MCs and five beams gives you instant response from all guns. Cascade rails are useful only against engineered terrorists in wing missions - ordinary pirates in HazRES or military ships in CZ usually has extremely weak shields.