Shooting shorter barrel than the restriction

I have an 8.5 inch barrel and a 10 inch 556 restriction, suppressor is silencer co 36m(stainless construction), I have the asr 3 port brake, and 30 cal end cap I believe. What happens if I shoot the suppressor like this, how obvious will it be if I need to warranty the device, if I drill some holes in an end cap will that be better, what if I just shoot 223, does that have a shorter restriction, if I shot that can in the k config how much worse is that? So many questions, are there answers? I don’t know, any opinions or sources will be awesome. Thank you guys for the help.