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Barrel length for minimum noise
As I said in a previous thread, I will be building up a 300 Whisper to shoot subsonic loads without a suppressor (illegal to have in my area). I know some people have 16-18 " barrel which make it handy, but I wanted it as quiet as possible with subsonic loads. I was thinking a 24" barrel to get the most velocity out of each grain of powder and to reduce muzzle pressure. Has anyone here compared say a 22" to a 26" barrel to see what the difference in noise is to someones ears a few hundred yards away? I know with my 22RF, when I cut the barrel down from 24" to 20" it got loud all of a sudden.
What length do you think is a good balance between handiness and quietness?
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