Would getting the first level of SL ammo capacity skill get me an extra round of rockets? It only gives 5% extra, but does the game round it up?

To clarify though, you'd only be getting that extra round added to your reserve ammo (or ammo capacity). It won't make your clip size any larger. You'll have to reload just as much.

If you're worried about ammo, you can always grab a cheapo Nanohive to bring with you on your AV adventures.

Correct, but the SL Operations skill does increases your clip size per level.

I think fully maxed out, you will have a 6 round clip, with 2 more for ammo.

Edited: My apologies. Your base ammo capacity is 6. If you have SL Operations max, you will have no ammo reserves. Once you get the SL ammo capacity skill to 4, you will have the 2 extra rounds. (Will confirm tonight.)

Basically, you should always run a nano-hive with SL's.

you know the SL starts with 3 per clip, btw they round down, always. so you'll never get more then 4 for the clip.

Actually I think not. Maxed out, you should have 5 rounds per clip and 1 round in ammo. Source is Fox Gaden's guide, but I will confirm tonight. My bad though.

Yeah, it should be only 5 rounds per clip. I messed that one up.

Operation: I am assuming that the SL Operations skill increases clip size by 5%. Also assuming that ammo capacity is a percentage value of your total ammo pool, i.e. Swarm Launchers clip size = 50% of 100% of your ammo pool:

A 25% increase would put your at a 75% clip size of your total ammo pool. One shot being approximately 16.667% of your total ammo, thus 4 shots would be 66.68% of your total ammo pool.

Assuming they round values in favor of players, your 75% clip size should be rounded to 83.34%, or 5 shots in your clip.

I'll try and find that post though and see if they indeed do round up.

they round up on the flaylock with the minmatar assault and shouldn't (giving 4 rounds per clip when its only 3.75 room). its a volume vs space thing which it makes me believe CCP failed out of college math.

Referring back to the original post, keep in mind the penalty versus Caldari (shield tanking) vehicles. My corp mates and I are all tank operators, and swarm launchers hardly strike fear in us unless at the proto level. Where we would normally eat the damage from standard, or adv SL fire, I generally pop the repper when I see a swarm doing more than 2,500 damage. Is there that big of a difference between adv and proto SL? From my end, yes.

I would agree. It is all the damage skills and modules that get it over the top. I'll throw some numbers at you.

Advanced SL:
Missiles per shot = 5
Damage per missile = 330
Total damage per shot = 1650

Proto SL:
Missiles per shot = 6
Damage per missile = 330
Total damage per shot = 1980

But that's without any damage mods or skills. If you have max proficiency in SL's, that's a 15% increase in your damage.

1980 * 1.15 = 2277

Just with the proficiency skill, that is a 297 damage increase.

Now consider that with 2 complex damage mods.
I am assuming that the proficiency skill stacks with the other multipliers.

1980 * 1.15 * 1.1869 = 2702.57

That is 722.57 more damage. Over a 35% damage increase, even before the explosive damage bonus to armor.
Just to throw that in quick: (I am currently assuming a 20% bonus against armor, although it may currently be more.)

1980 * 1.15 * 1.1869 * 1.2 = 3243.1

That's the benefits of percentile scaling. Hope this helps.