Hey all, as the title says Im thinking about the .17 hmr and kevlar vest. More specifically, can a FMJ round weave through the kevlar similarly to the P90's 5.7x28 fmj round. The ballistics may not be the same but the speed at which they both travel is nearly identical and they both have flat trajectories. I know the 5.7 was designed as a PDW round meant for going through soft body armor hence why we cannot buy FMJ rounds unless were government, LEO's and so forth. The .17 hmr is also similar to the 4.6 x 30mm shot by the MP7. Both the MP7 and P90 rounds were designed to pierce soft body armor but can the .17 hmr FMJ possibly pierce through atleast a level 2 kevlar vest? I have a level 2 vest and Im thinking of doing the test but I also want your guy's opinion on this. What do you all think?