I am going on a float trip to Alaska in a month. I need the best soft case I can find for protecting my rifle. I read where military snipers use what they call a drag bag and the name fits what I think I am looking for. I want something camo and tough. I am taking a 300 wthby mag.. long barrel and mark 4 with target nobs. I want the most protection i can get within reason weight. Any suggestions... please.