15 grains is a very tiny projectile, and unlikely to be fatal to much of anything at any speed.
The smaller the grain weight, the faster you can make the round go. 90 Grain bullets can reach 1,350-1,400 feet per second maximum, 147 grain bullets can only go 950- 1,000 Feet per second maximum. Assuming you're talking about bullet weight and not powder weight.
The ball is about 11 inches (28 cm) long and about 22 inches (56 cm) in circumference at the center.
The muzzle velocity of a Winchester .30-30 varies depending on the load and the bullet, but we can ball park things a bit. With a "standard" load and a 110 grain bullet, it's about 2,690 fps (feet per second). For a 130 grain bullet, about 2,500 fps. A 150 grain bullet cuts it to about 2,400 fps. With the 170 grain bullet, it drops to about 2,200 fps.
With a 32 grain V-Max bullet, the .204 Ruger has a muzzle velocity of about 4225 feet per second. Pretty quick.
That would depend on what grain bullet you use. There is a significant difference between a 110 grain and 180 grain. A 110 has a muzzle velocity of approximately 3400 feet per second while slowing down range to 3100 feet per second at 100 yards and 2800 at 200 yards. A 180 grain muzzle velocity is 2700 slowing to 2500 at 100 yards and 2300 at 200 yards.
2950-3010 feet per second- and it is spelled Creedmoor
90 miles is 475200 feet per hour, = 132 feet per second. The ball can travel 6 times 22 feet in 1 second, so 22ft is travelled in 1/6 seconds
2950-3010 feet per second- and it is spelled Creedmoor
If you assume that the punter is in space, where there is no gravity nor air resistance, it will take 2/3 second.
That depends on the weight of the round and length of the barrel. The average 180 grain loading is 990 feet per second. Though you can purchase 135 grain loads at 1420 feet per second. So the easy answer here is it varies on the ammo and barrel length.
16 feet/second is the speed. To know the velocity, you would also need to specify the direction in which the object moves.
Wheat is a word that rhymes with feet and means grain.