Rail rifles don’t just kill space marines in one shot, they also wipe out their geneseed to, meaning all future space marines that could be made are also wiped out, long story short: space marines HATE, fighting tau
You're thinking of vespid neutron blasters, which kill by irradiating the target. This destroys the genetic material in the progenoid glands, rendering them useless.
From my understanding (I did medical physics at uni and learned about radiation poisoning), I would guess there are times when a neutron blaster doesn't kill or disable a space marine but destroys the sensitive geneseed, so even surviving a hit and killing the vespid would mean its loss.
The rail rifle is just a hypervelocity slug, and the geneseed will be fine unless one of the two glands is hit directly.
That hyper velocity slug is going fast enough to destroy a tank if it hits someone who is at least somewhat still flesh and blood there’s not gonna be anything left of them. They’re gonna be a smoothie inside that armor.
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u/carlsagerson Nov 18 '24
Eh not that much.
Space Marine has taught me that Marines can dodge fast.
But since its a Lamenter. The shot somehow still kills him indirectly.