How long have you not thoroughly cleaned the barrel of your rifle?
But before cleaning ... anneal about 5 pods. Reload and test. The candle method is very simple. Take the case in the middle of the case body, with your thumb and forefinger, and roll it back and forth while heating the neck of the case with the flame of a candle. When you can no longer hold the case due to its temperature, throw it on a damp cloth. Clean the neck of the case and you're done.
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