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01-09-2017, 09:44 PM
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M&P barrel vs Sig
I love my Sigs and Smiths and know they're durable and made to last. I happen to be cleaning both my P229 Sig 9mm and my M&P M2.0 FDE 9mm at the same time and realized the M&P barrel was so much thicker next to the Sig barrel. It looks like S&W makes some them extra heavy duty.
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01-11-2017, 08:30 AM
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Thats so they can use the same slide for the other calibers. The barrel of the 9mm is thicker to accommodate the larger slide opening for .40
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01-11-2017, 09:42 AM
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Quote:
Originally Posted by gqllc007
Thats so they can use the same slide for the other calibers. The barrel of the 9mm is thicker to accommodate the larger slide opening for .40
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This ^^^
It's basically a filler. If you were trying to put a 9mm barrel into a 45acp slide the barrel would be even thicker. In the end only the lands and groves really matter
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01-11-2017, 03:28 PM
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Quote:
Originally Posted by Arik
In the end only the lands and groves really matter
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This is not true. While the Sig barrel pictured is safe and serviceable, a thicker barrel is stiffer, has less whip, is safer in any kind of over-pressure event, and while heavier, may contribute to improved handling characteristics.
There is a point of diminishing returns on making a barrel thinner.
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01-11-2017, 03:40 PM
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Quote:
Originally Posted by CB3
This is not true. While the Sig barrel pictured is safe and serviceable, a thicker barrel is stiffer, has less whip, is safer in any kind of over-pressure event, and while heavier, may contribute to improved handling characteristics.
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I doubt that barrel whip is much of a factor when you are talking about 4-5". Rifles are a different deal. Beyond that, I've never heard of a Sig barrel developing muzzle splits the way the M&P 1.0 did in some calibers.
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01-18-2017, 11:02 PM
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It might be to mitigate recoil and have a certain balance in the gun. Who knows, but I love them both.
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