Depends on if it is a bolt action or something like an AR-15. Bolt action is good up to I would say 300 yards. AR would be less because of the semi-auto feature. Other factors include wind, what kind of scope, and the type of bullet you are using (like the grain size of the bullet, etc.)
1000m
Both do what they are supposed to within their range limitations.
A rifle with a 5.56x45 chamber can utilise .223 Remington cartridges. A rifle with a dedicated .223 Remington chamber cannot accommodate 5.56x45 cartridges. A rifle with a .223 Wylde chamber can accommodate .223 Wylde, .223 Remington, and 5.56x45, but neither a rifle with a 5.56x45 or a .223 Remington chamber can accommodate the .223 Wylde cartridge.
.223 Remington can be cycled in a 5.56x45 rifle; 5.56x45 should not be cycled in a .223 Remington firearm.
no
Minimum range would be the end of the barrel. Maximum effective range for a M-16 firing the dimensionally similar 5.56x45 is listed as 550 metres at a point target, and 800 at an area target. For a rifle firing commercial .223 Remington ammunition, you could expect the results to be similar.
NO the .223 is a totaly diffrent round than the .223 WSSM
The 223 is considered a Short Action rifle.
you can fire both 5.56 and .223 ammo in a rifle chambered in 5.56...but not the other way around! In a rifle marked .223, you should fire .223 ammo only
It depends on the condition of the rifle.
anywhere from $800 - 1200, depending on accessories
No.