Duzell - If you're talking about my post...I don't think the premature discharge on the malfunction, is caused by a extended firing pin gap. It might be some part on the face edge of the bolt that hits the primer after a force is applied. I'm not about to experiment with such a malfunction.
That rifle hanging on the wall of the working class flat or labourer's cottage is the symbol of democracy. It is our job to see that it stays there."
--- George Orwell