Reply to post: Re: Next, apply the technology to ...

Concorde without the cacophony: NASA thinks it's cracked quiet supersonic flight

W4YBO

Re: Next, apply the technology to ...

I practice in my back yard with subsonic .22s, and .45ACP. However, nearly all ammunition is supersonic unless specifically loaded as subsonic. Even using Remington Subsonic ammo (1050 fps), fired from a 24 inch barrel, you'll hear the supersonic (1100+ fps) crack on occasion.

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