Snyd
.375 Atomic
The Last Frontier
Posts: 2,392
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Post by Snyd on Sept 11, 2017 15:38:07 GMT -5
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Post by bigbrowndog on Sept 11, 2017 17:49:01 GMT -5
From my experience, it means, there is sn expansion chamber where the bullet is flying free of rifling but still in the barrel or brake, and then it flies thru a wall of material with a hole drilled thru it larger than bullet diameter but sufficiently small enough to capture and force the expanding gases to exit the ports forcefully and thus make the brake work.
Trapr
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Snyd
.375 Atomic
The Last Frontier
Posts: 2,392
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Post by Snyd on Sept 11, 2017 19:56:37 GMT -5
From my experience, it means, there is sn expansion chamber where the bullet is flying free of rifling but still in the barrel or brake, and then it flies thru a wall of material with a hole drilled thru it larger than bullet diameter but sufficiently small enough to capture and force the expanding gases to exit the ports forcefully and thus make the brake work. Trapr Wow, sounds like quite a bit of precision machining going on in there. Thanks. I suppose that would cut down, or eliminate lead being shaved off and spit out the ports like on my mag-na-ported Redhawk. |
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Paden
.375 Atomic
Lower Goldstream Creek
Posts: 1,132
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Post by Paden on Sept 11, 2017 20:54:05 GMT -5
From my experience, it means, there is sn expansion chamber where the bullet is flying free of rifling but still in the barrel or brake, and then it flies thru a wall of material with a hole drilled thru it larger than bullet diameter but sufficiently small enough to capture and force the expanding gases to exit the ports forcefully and thus make the brake work. Trapr Is the short portion forward of the restrictor plate rifled again, or is the bullet forever free of rifling from the point it enters the expansion chamber? |
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eskimo36
.375 Atomic
Oklahoma
Posts: 2,049
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Post by eskimo36 on Sept 12, 2017 5:18:45 GMT -5
The entrance to the expansion chamber is crowned and that is the last barrel contact for the bullet.
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Post by bigbrowndog on Sept 12, 2017 11:30:15 GMT -5
Eskimo is correct, no further contact with rifling after entering the expansion chamber.
Logically any reintroduced friction could greatly affect accuracy, so it's free flying once it leaves the actual rifled barrel.
Trapr
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Paden
.375 Atomic
Lower Goldstream Creek
Posts: 1,132
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Post by Paden on Sept 12, 2017 12:32:00 GMT -5
That makes sense, thanks.
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Snyd
.375 Atomic
The Last Frontier
Posts: 2,392
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Post by Snyd on Sept 12, 2017 12:55:28 GMT -5
Interesting. So the the last inch or so of the barrel in the pick is a chamber/tube larger than the goove diameter.
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Snyd
.375 Atomic
The Last Frontier
Posts: 2,392
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Post by Snyd on Sept 12, 2017 14:50:51 GMT -5
Here's another pic from Bowens website. For some reason I had never noticed the smooth bore in this barrel...  |
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