Two more things that i forgot:
Yes i am going to apply for the tax stamp once i get my plans and before i start fabricating
It is for a .22 lr

I am looking unto building my first can. I am not a machinist, but I have a brother who is. He told me to get some plans and he can probably build it. I was checking out silencer-plans.com. Has anyone tried them? Any good or a waste of money? Any other good resources for prints?