Hi.
http://www.rifleshootermag.com/shooting_tips/ballistics_0303/
this explains why the bullet seems to rise and fall at different distances. its not unusuall infact it will happen in 99.9% of firearms unless the firearm is set to a "Flat Trajectory" zero.
It seems like your fairly new to shooting and the "Exterior Ballistics Effects on a Bullets Trajectory"
my suggestion is that you take the time to read and DL or buy this software.
Sierra Infinity V6 Ballistics Software (i Dl'd it) and it is fantastic.
along with that they have a long range shooting simulator that will teach you about the mathematics of shooting and allow you to get some in expensive practice away from the range and prying eyes. This software will teach you to
1) Range a target just by looking at it in the scope
2) determine Elevation adjustments
3) Windage Adjustments
4) Accomodate the most daunting of variables for the amatuer shooter the weather
(any shooter can learn how the gun fires on a perfect day. it takes a good shooter to take into account the Barometrice Pressure, Humidity, Elevation (from sea level), and Temperature. And be able to hit the first time)
Regardless of your skill level this software is indispensable it will teach you the cores you need to know for when your software is broken or your pc is broken or its just not fiesable at the time.
it will increase the range from which you can shoot. (in 4 hrs i was shooting to 6oo yards, in two days 2100 yards)
ill check back incase you need other info like how to determine zero by inches of center
SOURCE: Ruger 10/22 Scope problem
This happens will all firearms. what happens when the bullet leaves the bullet is a decieving "rise" of the bullet. The reason for this is the Line of Sight (Scope View), angles down and away from the Line of Departure (Barrel). The bullet actually never rises and is in fact continally falling away from your rifles Line of Departure but because this is higher than the Line of Sight the bullet seems to Rise than fall to the set distance in the scope (i mention set distance and not zero because you can change your Minutes of Angle on your scope to increase and decrease range)
http://www.rifleshootermag.com/shooting_tips/ballistics_0303/
this is a chart that illustrates what i just said.
now that you understand that you should take a good read into Exterior Ballistics. this is the Mathematics of your fireamrs trajectory ( I say your firearms because your bullet's flight depends on the length of the barel which will vary from gun to gun) this science of shooting will teach you how to understand bullet Grain and Volume relations. understanding the Feet per second of your rounds and how the affects you. teach you about shooting in high pressure and low pressure environments and extremly windy environment.
now there is alot of math to all of this and its hard to find it all on the net and if your not that great at math you can do what i do bc im lazy and im not a sniper im just a hobby kinda guy. '
Sierra Infinity V 6 Ballistics Software. I dl'd mine off the net you might have to buy it depending on how resourceful you are. it is well worth the buy. You can punch in the daily variables (Barometric Pressure, Temp, Humidity, and Altitude) (of couse with your bullet as well) and it will give you a "Cheat Sheet" for those conditions stating Windage and Elevation adjustments per decided incriment (50 yrds is standard) then you take that to the range and (bring a laptop if you got it and arent embarrased (som1 might even help you tune in the variables) hope this helps if not ill check back in a bit to see how you did
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