I must admit that I have missed a big game animal with a rifle. And not only was it a bull elk, it was the largest bull that I have had in my sights with a tag in my hand. But, as with most "missed shot" stories, I have an excuse. Moisture doesn't really ever bode well for hunting equipment. When moisture (either rain or snow) gets into a firearms barrel, nothing good takes place. A couple rain drops down there can change the point of impact drastically and a barrel jammed with snow after a tumble could even pose a serious threat to one's safety. I am convinced I missed that bull because I had not paid attention to all the moisture that had made its way into my barrel on my hike in that morning. But there is a way of preventing this frustrating dilemma.
You need to put something over the end of your barrel that will keep moisture out but that will pop off when the air compresses in front of the moving projectile. I have achieved this through two methods. First, I have used standard black electrical tape. Two pieces criss-crossed has done the trick in the past. However I have now moved onto a new method. In the bandages section of your local grocery store you will find latex finger bandages. They are used as a sanitary precaution for fingers with open wounds. They are essentially a very small condom for your finger. I have slipped these over the muzzles of light to heavy contour barrels as well as muzzleloaders. I find this method even more essential for blackpowder hunters because if the powder in one of these rifles gets wet, there will not be a big BOOM following the pulling of the trigger.
Use this simple trick to keep your rifle shooting straight no matter what the weather.