I have a PB Freecheck 111 I made from Ed's design.
I am using .008 & .009 Aluminun flashing material in a roll.
The question is does it matter if the check has a concave or convex (dome) shape when installed.
I looked at the Hornady checks I have and they have a concave shape before installed.
What is your opinion anyone that has tried Pat's or Charlie's notice any difference in accuracy?