I was going to contact mfg but thought I would ask here also
when they say it’s 300blk rated does that mean that u shouldn’t shoot anything else due to pressure or just talking about sound reduction not as good?
As it were I called Sico customer service today on another can being rated for an SBR. I was amazing they picked up in about 2 rings and answered my question forthwith. So far I've had nothing but good experiences with Sico.