Not bad. Louder than a 22, but it's not like a 50 cal. Your ears WILL ring for a bit, which isn't a good thing we now know, so keep the plugs in while on the range after you run a cylinder without just to get an idea how loud they are.

If you ever need to use it defensively, you might not even hear it. Adrenaline does funny things to the ears.
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-IronRaven

When a man dare not speak without malice for fear of giving insult, that is when truth starts to die. Truth is the truest freedom.