Years ago when I lived in South Carolina, I had a 45-minute drive from my house to the Sumter National Forest where I hunted. It was early season and a nice sunny day with a full moon evening coming. It was a perfect setup for a late afternoon hunt. I took off work early, maybe 2:30 ish and scooted home and grabbed my hunting clothing, pack, rifle, stand, etc. tossed them into the trunk, and headed on out. I quickly drove to the forest. Man, I was excited, I had the parking spot all to myself so I jumped into my hunting clothing, checked my pack, grabbed the rifle, and went to load it. I had taken my Marlin 336 that day, so I pulled out the ammo from the pack and found I had taken 20-round nose bullets, 150 gr., but 308, not 30-30. Nuts, ok I placed the gun back into the case, put it back in the trunk, started up the car, and headed for home. Got home grabbed the right ammo and still made it back for a short but still great evening hunt. I always double-check the caliber now.