Originally Posted by Car54
JD, do you know if fluting has any effect on accuracy or bullet spin?
That is subjective Car. Very, very subjective depending on which side of the fence you stake your tent.
One of the big things that affects accuracy is harmonics induced on the barrel by the explosion of the round being touched off and the gas pressure being released, especially from one round to another.
Now, take a magnum caliber like a .300 Win mag. Massive round, traveling at incrediable speeds and ground zero to a small explosion when you touch it off.
Take that round and put it along side a .22LR
Which one is going to induce more pressure on the shooter through recoil? Which one is going to generate more force on the action?
Obviously the .300 Win mag is going to do everything with more aggression.
So, put them both in an identical metal cylinder and ask that cylinder to take that force and convert it to torque to spin the bullet. Then take that cylinder and rest it on top of something like a car tire that rotates on an axle. Round and Round.
If the walls of the cylinder are paper thin, and it weighs only a few ounces, what will happen? You touch that round off and the .22LR is going to give the thin cylinder a little spin and the .300 Win is going to spin it like a top.
If the walls of that cylinder are as thick as battleship armor and it weighs dozens or hundreds of pounds, what will happen? The .22LR probably isn't going to cause the wheel to move at all, and the .300 Win Mag is going to cause VERY little movement.
That is basically what happens when you touch off your round. You induce MASSIVE torque into the barrel via the lands and grooves to get the bullet spinning on it's axis to cause rifling.
Have you ever taken a drill and put a large caliber drill bit through a piece of metal and have it BITE?? What happens to your wrist??
Just food for thought.....