5 inches
Depends on exactly which rifle(s) you refer to.
how much is the carcano rifle worth
alot
the pitch is of 22 yards
Don't put as much air in the rifle. If you have a dial to set the power then use it. As you shot the power drops. You can dry fire some PCP air rifles.
15 feet in 5 yards. A yard is 3 feet long.
97.5 yards
Up to and including death.
If the rifle is sighted in at 100 yards, at 300 yds the bullet will drop 24-25 inches below the aiming point.
If you have a model 60 then 50-100 dollars.
50-100 USD