Hi there. I'm interested to hear from others not only what you choose, but why you chose the way you do, on how to design defensive-wall blueprints with ammo belts. For the moment, my own application is smack in the middle of red-belt stage, without bots unlocked, and using a blue inserter for each turret -- daisy-chaining turrets at wall corners if the turret cannot be placed adjacent to a belt directly.

Should I look into downgrading my design so that future outposts would only use yellow inserters? I honestly don't know what the biter-defense ramifications would be for whatever the speed difference might be from blue to yellow, but I am dimly aware that yellow inserters draw less power at idle than blue inserters do. If we're talking thousands of inserters, does the extra electricity of blues justify the extra ammo throughput that they provide over yellow or burner?

I hope that this question is agnostic as to "mainbase ammo belt" provided from the production facility directly, as opposed to train-resupply ammo delivered to an outpost far enough away to be cut off from mainbase amenities.

I generally disapprove of myself whenever I use burner inserters, but I recognize that they're a good option for hinterland outpost defenses where the power supply might get cut off due to biter activity there or elsewhere. Burner inserters also seem to me to be better suited to bot-supplied ammo at the turrets (with blue requester chests or green buffer chests requesting a stack each of ammo and inserter-fuel) instead of feeding with a long winding ribbon of an ammo belt, mostly because fueling inserters from an ammo belt would require an entire half of the belt to be taken away from ammo throughput.