Roskoe - if you want to carry the Black Diamond primed but breech closed, all you need do is take a tire valve stem cap and put it over the primer, cap, what ever, and close the action. Leave the safety off. The cap will seal right under the lip of the hammer striker and also help water proof the breech for you. When you're ready to shoot, a simple pull back on the cocking lever and tip the rifle to the side, the valve cap will fall out and your ready to shoot.

In fact if you take fishing line and feed it through the cap side, you can tie that to the trigger guard. Then when you tip the rifle or flick the string to pull it,youdon't even loose the cap. I have a mechanic friend that saves all the old tire valve stem covers for me, so I have no need to save them. Give it a try sometime...