As much as the retailer charged after their markup. The question is so vague as to be virtually impossible to answer. When you say rifle, you could be talking about anything from a .22 up to a .50 BMG rifle, and even a larger, NFA Class II Destructive Device. On top of there, there are varying loads in different calibers, which will affect the cost, as well.
The force of the rifle on the bullet and the force of the bullet on the rifle are equal in magnitude but opposite in direction, according to Newton's third law of motion. However, the mass of the rifle is much larger than the mass of the bullet, so the acceleration of the rifle is much smaller compared to the acceleration of the bullet.
Cost: 1 rifle, 1 bullet, several hours of hunting time.
50-300 USD or so
$600 - over $2000, depending on specifics.
Yes - much faster.
Well, a ballistic vest (bullet-proof vest) was around $800 back then, so it was quite a small fortune. Rifle bullets were probably around 100 dollars per mag.
It depends on what caliber.
284 is the bullet diameter and in the US can be a 7mm. Cartridge would be a 284 Winchester and it would depend on the maker and type of rifle you buy.
Very little. Very small, light bullet.
The cost of a 50 cal. BMG bullet is about $3,000 if you go to the right store!!
Depended on the rifle. $5-$500
40$