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12-10-2010, 07:48 PM
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#21
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I'm always 10-8
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Quote:
Originally Posted by Glasshartt
The marks left by the lans as the bullet travels through the barrel?
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Then why aren't spent revolver and pistol bullets the same? Why the "skid marks" on the revolver bullet?
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12-10-2010, 08:17 PM
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#22
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I'm always 10-8
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Quote:
Originally Posted by HKSlinger
I will say this. Your a plethora of knowledge! Now that should be worth at lest 1 atta boy.Hmmmmmm?  |
How about two?
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"...if doves shot back, there wouldn't be a need for a bag limit." - orangello
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12-10-2010, 08:37 PM
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#23
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Moderator
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A revolver fires a bullet that is not spinning, but is accelerating- until suddenly it encounters rifling- at that point, it is spun up rather abruptly, leaving a "skid mark" where the lands grab the bullet. However, pistols have a bullet sitting right at the start of the rifling. It does not have the distance to accelerate before encountering rifling. While the lands still grab the bullet, they spin it immediately. At one time, Colt revolvers used "gain twist" rifling, where the rate of twist increased as you moved towards the muzzle, to avoid the skidding of the bullet.
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What we have heah is.... failure to communicate.
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12-11-2010, 02:25 AM
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#24
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Well put C3, what I meant, but I didn't say it nearly as well. Would suppose you get the same thing on Weatherbys and other freebored rifles.
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12-11-2010, 03:00 AM
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#25
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Quote:
Originally Posted by c3shooter
A revolver fires a bullet that is not spinning, but is accelerating- until suddenly it encounters rifling- at that point, it is spun up rather abruptly, leaving a "skid mark" where the lands grab the bullet.
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Kind of like the road rash a body gets when it's dumped out of a moving vehicle at 60 MPH, before it starts rolling?
Hypothetically of course.... 
So we've got the forcing cone and slamming into the lands. Where is the love for the cylinder throat? 
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12-11-2010, 03:52 AM
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#26
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Some years ago, in the misty dawn of time, there was this giant firearm called a Paradox. With a bore so large that it was measured in guage rather than caliber, it started as a smoothbore, and about halfway down the barrel, it grew rifling. Hence the name Paradox.
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12-11-2010, 06:06 AM
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#27
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Silly me, for my paltry H&R guess.
Ya know...C3's
Quote:
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"A revolver fires a bullet that is not spinning, but is accelerating..."
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idea really sounds reasonable to me ...
And the answer is?? 
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12-11-2010, 03:14 PM
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#28
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Quote:
Originally Posted by c3shooter
A revolver fires a bullet that is not spinning, but is accelerating- until suddenly it encounters rifling- at that point, it is spun up rather abruptly, leaving a "skid mark" where the lands grab the bullet. However, pistols have a bullet sitting right at the start of the rifling. It does not have the distance to accelerate before encountering rifling. While the lands still grab the bullet, they spin it immediately. At one time, Colt revolvers used "gain twist" rifling, where the rate of twist increased as you moved towards the muzzle, to avoid the skidding of the bullet.
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Dammit, c3 beat me. This is correct, the bullet resists the initial spinning motion, so you get wider grooves at the front of the bullet.
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Quote:
Originally Posted by canebrake
"If innocent life doesn't immediately depend on it, don't shoot. And if it does, don't miss!"
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Ruger Mk III Competition .22 LR, S&W M&P Pro Series 9mm
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