Although Tim Walz was a coward for never deploying to Iraq, it was probably for the best that he was never there, nor saw any combat. If you don’t believe me, watch this video of him struggling to load and clear a Beretta shotgun during his pheasant-hunting PR stunt Saturday in Minnesota. You can tell he’s trying so hard to maintain his composure while fumbling a basic task which anyone who has a modicum of experience with guns could perform handily. “This is a Beretta A400,” Walz tells a reporter in the video. “I bought it when I was shooting a lot of trap because it has kind of their patente…