so I tested it myself again, seems I must of gotten lucky because I only managed to get all but four 4 missiles there in time and tried with autochain firing and duel max'ed firing the charged cannons.

but found out the stringgreys max range on a non moving target(test on goliath) is 1864.(I hit the goliath but didn't bother to test m extra on range).

tried I believe 36times before I gave up averaging a shield damage of the amount I can hit that was said above at 40.

so in the end. I was wrong on the rev and stringreys, I musta just got lucky and assumed it was possible.

Scared,

It may have been possible if there had been some other NPCs shooting at the queen the same moment your stack and chainfired plasma hit. That is a very limited scenario, but it does happen. I have personally seen the NPCs deshield a leviathan (after all the queens are killed), so i know NPC fire does make a difference.

maybe, its been a long time so I can't remember how it fully went.

now I feel bad making a false queening tactic lol

Stingray missiles have life span of 20 seconds.
there are 14 stingrays per tube .
fire rate 1.5 seconds.
there is no delay on the first missile, so 13 times 1.5 seconds is 19.5 seconds.
you can have all 14 stingrays in the air for 0.5 seconds.
You would need to fire the last stingray from less than 45m for a perfect stack.
I am pretty sure you will collide with the target, and the stack.

I would use stingrays and gems before I could get swarms and I remember it working.

Stingrays work fine. You do not need them perfectly stacked.