I run 2 main LRM boats, an LRM40 and an LRM30.
LRM40 has a potential damage of 44 (The max damage a shot could cause, if all missiles hit).
But with the hit rate of LRMs only being around the 33% mark, that's a realistic damage (how much it'll actually do) of 15 per shot.
Which will be spread across the mech, not entirely sure what the spread is exactly, but I normall see 3 components flash, so I'll assume 3 average, with a slight bias to the CT, so I'll call it 'realistic' divided by 3 +1, and write future LRM damage as 44 / 15 / 6, to represent Potential, Realistic and Damage reaching CT.
LRM30 is 33 / 11 / 5.
Chained / Single LRM5s will be 5.5 / 2 / probably 1-2 still, however, AMS will shut it down.
At 180 missiles per ton, that's 4.5 shots for the 40, and 6 for the 50, with a 198 / 66 / 22 for the damage
You're looking at least 1-5 full tons to kill a mech, usually more.
Both those boats carry 8-9 tons of ammo, for 36-44 shots each (or 324 LRM5 singles).
And of course, there's plenty of countermeasures to LRMs (Cover, Lateral movement, speed, ECM, shutting down, being underwater, AMS), and it's the only weapon where you get warned that it's shooting at you, enabling you to enact those counters.
An equivalent weight of weapon, in a pair of AC10s (for a long range AC20) gets 15 rounds per ton, does 20 damage per shot and get 7.5 shots per ton.
So that's a potential damage of 150 per ton.
Accuracy for these however, is closer to 66%, so you're looking at around 100 damage per ton, which is also focused where you hit it.
With 8T of ammo, that's 60 shots of AC20, with a potential damage of 1200 and a realistic damage of 800.
If both mechs shot at one of my locusts, and it stood perfectly still to oblige them, they need to do 32 damage to the CT to kill it.
That's 2 shots of AC20, or 5-6 shots of LRM30/40.
So you could kill 3.75 Locusts a ton with twin-AC10s.
Or 1 Locusts a ton with LRM30-40s.
Or to put it another way -
Twin AC10s still only need 0.26 of a Ton.
LRMs need 1 whole ton.
Other end of the scale, to kill an Atlas, you need:
1.06 Tons for the twin AC10s.
Roughly 5-6 tons of LRM ammo.
King Arthur IV, on 16 April 2014 - 01:25 AM, said:
there use to be a pay off for getting your own LOS but they nerfed it. basically there is no need to get your own los unless you want to make sure the lock is good.
Having your own LoS with Artemis, reduces lock on time and improves spread, this stacks with TAG, to give you an even faster lock on time, and better spread.
With Artemis and TAG you can probably reduce the amount of missiles you need to kill a target by 10-20%.