Originally Posted by Axxe55
5.56mm, 308, 338 LM...?
AMI: 7.5 lbs--3 mm steel over compressed Dyneema
DBT: 6 lbs--8 mm aluminum oxide backed by resin reinforced Kevlar
DT: 4.5 lb--Dyneema composite
MSA: 6 lbs--Aluminum oxide backed by compressed Dyneema, Gold Flex, and closed cel foam
TenH: 4.25 lbs--Aluminum oxide backed by compressed Dyneema and closed cel foam
TenD: 3.25 lbs--Compressed Dyneema
Will all stop those rounds at most velocities.
These are all level III trauma plates.
1/4" AR500 steel could be cut to fit in a trauma plate pocket in a IIIA vest and would also stop those rounds at most velocities.
Most IIIA to lighter kevlar vests have thin soft shock plates now that won't stop anything and only serve to help the body absorb the shock
3/4" AR500 steel will stop .50 BMG ball rounds at longer distances. But you'd be jelly and its pretty heavy.