Trip,
That's generally true in regards to the bullet crack. I have a feeling he may have special loaded some subsonic ammo. As quiet as the gun and round were, I can't imagine it was all due to the integrated silencer. We weren't shooting long range, mostly culling exotics at night (which is legal before anyone wonders). Even with full loads, it sure cut out the bang of the rifle. We shot without earplugs without a problem. I don't know specifics, it was a long time ago when I was just a cub.
BTW, hrgrisso, outstanding story. I can't wait until we can order your first book. I'm always happy to support THR members.