Lands & grooves are in clockwise or anticlockwise direction inside the barrel. So when a bullet pass through the barrel then lands rotates the bullet according to their clockwise or anticlockwise direction.
Lands are in direct contact with the bullet; not grooves. Bcoz lands are the raised portions & grooves are the depressed portions inside the barrel. When the bullet is in close contact with the lands, then lands will rotate the bullet in the direction of its rotation due to rotational frictional force applied between lands & bullet.
I am always glad to listen to your videos ! I am always learning... You are a GREAT teacher !! I would have a question, but I do not know where to put it. It is about the rifle bullet nose position on a long (1,000 meters) trajectory. On his down trajectory, is the bullet nose pointing down ( following the trajectory line ) or is it pointing straigth in an horizontal position ? ( like an american football ball ). I am aware of the centers of presion/gravity of the bullet Thank you for your attention
Acc. To my knowledge....bullet nose always follow or in the same the direction of trajectory except in few cases like yawnning, tumbling, nutation etc.
How does the grooves in the barrel initiate the spin?
Lands & grooves are in clockwise or anticlockwise direction inside the barrel. So when a bullet pass through the barrel then lands rotates the bullet according to their clockwise or anticlockwise direction.
@@SavvyForensics how does it rotate??? Do the grooves touch the bullet?
Lands are in direct contact with the bullet; not grooves. Bcoz lands are the raised portions & grooves are the depressed portions inside the barrel.
When the bullet is in close contact with the lands, then lands will rotate the bullet in the direction of its rotation due to rotational frictional force applied between lands & bullet.
I am always glad to listen to your videos ! I am always learning... You are a GREAT teacher !! I would have a question, but I do not know where to put it. It is about the rifle bullet nose position on a long (1,000 meters) trajectory. On his down trajectory, is the bullet nose pointing down ( following the trajectory line ) or is it pointing straigth in an horizontal position ? ( like an american football ball ). I am aware of the centers of presion/gravity of the bullet
Thank you for your attention
Acc. To my knowledge....bullet nose always follow or in the same the direction of trajectory except in few cases like yawnning, tumbling, nutation etc.
@@SavvyForensics Thank you !
Velocity ka formula ?
For this kindly visit telegram channel..I had shared every formula of internal ballistics in image format
Plz work on spellings