I hunt with a Sile Hawken Hunter which is a short-barreled Hawken clone. Years ago I bought a Hubbard Mag Spark and have shot BlackHorn 209 powder in it since. After a range session today I cleaned it. The last time it was cleaned was the summer of 2016. I had hunted with it many times and if I shot at a deer, I quickly reloaded and hunted again. After 3 1/2 years I thought it was time to clean it and see what condition the barrel was in. The barrel was very dirty but otherwise there was no corrosion, pitting, whatever. Since BH 209 is really a smokeless powder, it was the same as if I fired my .25-06 without cleaning it. Others had predicted woe and gloom but nothing of the sort happened. Just passing this along for general knowledge.