Can't be answered withou knowing the mass of the pellet.
Can not be answered without knowing how heavy the pellet is, how fast it will be leaving the muzzle, pellet shape, location where it will be shot.
.177 caliber pellets come in different weights, this has an effect on how far the pellet will travel. You can expect a pellet to travel anywhere from a few hundred feet to over a 1/4 mile with ease. Depending on the weight of the pellet. Light weight pellets will travel further than a heavy pellet but are less accurate. Where a heavy pellet will fly straighter and have more knock down impact.
About 1" past the muzzle.
If you are asking how far a 22 LR bullet will travel, about 1.5 miles.
Manufactures never state "How Far" a pellet will travel. They just say several thousand yards or something like that to cover themselves. It really depends on the power plant in the air gun and the weight of the pellet. (YES pellets come in different weights) obviously a lightweight pellet will travel farther than a heavy pellet. But a Heavy pellet will fly straighter and have more knock down impact than a lightweight pellet. Wind, altitude and angle all have an effect on length of shot.
In excess of one mile
1223 feet
as far as it wants
The projectile can travel up to 1.5 miles
2 to 3 mi. so be safe
No. a 177 is a 4.5mm pellet. A 5mm is a 20 cal pellet. A 5.5mm is a 22 cal pellet Don't try it in the wrong airgun.