Printable View
Why are we so stingy ?
For most barrels we have only four or six rifling grooves.
When Marlin gave us more grooves, they shallowed their depth keeping the stingy mindset.
We want lots of deep grooves.
And why only a constant number of rifling grooves in a given barrel ?
Start with six rifling grooves near the chamber. Add another rifling groove about a quarter of the way. And yet another groove as we approach the muzzle.
Let's not be so stingy.
American Rifle Company is working on the tooling right now.
Why the need for so many grooves when just one will impart the same rate of spin on the bullet? One should be more than sufficient.
One is the loneliest number.
One would be the only number you would not want as it would push the center of gravity off the center axis creating an unstable wobble. All other numbers within reason can be divided out to put equal force on the center of the projectile.
Please don't ban me Mr Jim Sir but i just had to say it :p
I have an SMLE 303 that only has 2. It's think it's called tru-groove or accu-groove,I forget. For a gun that was built in the 40's it shoots really good.
Is this whole thread a joke that is flying over my head?
Yes, Hammer does this.
You're all sick and wrong, not to mention twisted.
We may be twisted, but at what rate are we twisted Foxx? LOL
I'm not twisted thank you very much. I just spin a wee bit, the more i drink the faster i spin. Much like MORE POWDER!!!!!!!!!!!!!!!!!!!!
And why must all the rifling grooves be conformists and rotate in the same direction ?
Each rifling groove should be free to rotate as it sees fit.
Some clockwise.
Some counterclockwise.
Some in three-dimensional interstellar space.
Good to hear from you Art. I do have a question for you though...
If I were to shoot an 80gr Nosler from my 1-8" twist 22-250 AI with a muzzle velocity of 3,345fps at the moon from the International Space Station, how many revolutions would the bullet make before hitting the surface of the moon and how much energy would the bullet deliver on impact?
I only ask because I swear I saw a prairie dog poke his head out of a crater while I was looking at the moon through my telescope the other night.
I will even help with the figures.
Distance from Earth to Moon = 238,900 miles
ISS Orbit = 207 to 270 miles from Earth
80gr Nosler Energy @ Muzzle = 1988 ft-lbs
We need to further account for the combined precession of both the Earth's and the Moon's tilt.
If memory serves me right, the Earth's tilt is changing at a rate of about 47" per hundred years.
Can't recall right now the rate of change of the Moon's tilt.
Think current guestimates are that if the variation and degradation of the Earth's tilt continues along predicted patterns that within 8 billion years it could have a profound effect on global warming forcing all Montana prairie dogs to migrate to Venus or Jupiter.
Wyoming prairie dogs are more likely to head for Nebraska.
Good one!Quote:
Originally Posted by J. Baker
You might want to reconsider shooting at the moon. A little off center and the lunar orb may begin to rotate, could be disastrous.
But we are taught by motivational posters everywhere that if you shoot for the Moon, even if you miss you'll be among the stars!
This talk of Moon prairie dogs reminds me of Futurama.
http://theinfosphere.org/images/thum...fy_gophers.png
Always be weary of where you step when crater-dog hunting as you wouldn't want to step on a moon-pie. :biggrin-new:
ok you guys are going to force me to do something drastic like quit drinking or something. dadblasted moon pies and moon dog hunting. everybody knows the man in the moon ain't selling no hunting permits this year. besides Dean is the only one with loads that reach escape velocity.
I got nuttin to add.
They're so twisted I'm speechless.
Should the direction of rotation be different for the northern and southern hemisphere?
I didn't know it was possible for you to be left speechless Norm. lolQuote:
Originally Posted by foxx
He ain't got nuthin on Long Range.