The Stock was more bondo than wood. Earl often added or sanded it off during shoots. It was before adjustable combs.
I was shooting the same gun, and we often talked about the 303.
Of course, he only used his for doubles, but was lightning fast with it.
He was the one that told me you have to clean the piston rod every time you use it. We carried a small piece of steel wool for that purpose.
His gun was 30" full.