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Old January 8, 2020, 05:57 PM   #1
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Velocity gains while suppressed?

Has anybody done some chrono testing for shooting rifle suppressed vs unsuppressed? I'm assuming you're gaining velocity since the gases are behind the bullet for a little bit longer going through the suppressor. I saw this article talking about it and the results were an about 18 fps gained using a suppressor. Except for the 223, which I'm curious to why that round would be different. Can anybody post their results if there any out there?
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Old January 8, 2020, 07:55 PM   #2
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The gain from “free-bore boost” is not enough to be of practical consequence

10-20fps wont change anything
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Old January 9, 2020, 01:20 PM   #3
T. O'Heir
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"...about 18 fps gained..." Won't make a lick of difference either.
"...suppressed vs unsuppressed..." Is about changing how the air displaced by the gasses comes back. And suppressed does not mean silent.
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Old January 16, 2020, 07:44 AM   #4
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And suppressed does not mean silent.
That depends.....

In the 1980's one of my buddies was a class III dealer and collector. He had a Mac 10 45 ACP with a can. With new wipes is was Hollywood quiet. The only sound was the bolt slapping and the brass hitting the floor. And that was firing in a warehouse.
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