How much different will my gun shoot

Ultramag45

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I am going to Wyoming in a week.. I shoot a 338RUM zeroed at 300yds.. 400 yds about 9 inches low 500 is about 25inches low.. this is all at sealevel... How much different is this gonna be at 7000-9000 feet. Is it just a couple inches high or is it drastic,,, I use a leupold with B&C reticle, it is right on the money. I wont have time to really doa chart or anything... is there a table out there with this info, I wont be shooting over 600 yds..... Any info or personal advice would be great
 
I am going to Wyoming in a week.. I shoot a 338RUM zeroed at 300yds.. 400 yds about 9 inches low 500 is about 25inches low.. this is all at sealevel... How much different is this gonna be at 7000-9000 feet. Is it just a couple inches high or is it drastic,,, I use a leupold with B&C reticle, it is right on the money. I wont have time to really doa chart or anything... is there a table out there with this info, I wont be shooting over 600 yds..... Any info or personal advice would be great

We would need more info., like bullet weight, muzzle velocity, are you using factory amo?

You can also go here and use this online application to create drop tables.
 
I am going to Wyoming in a week.. I shoot a 338RUM zeroed at 300yds.. 400 yds about 9 inches low 500 is about 25inches low.. this is all at sealevel... How much different is this gonna be at 7000-9000 feet. Is it just a couple inches high or is it drastic,,, I use a leupold with B&C reticle, it is right on the money. I wont have time to really doa chart or anything... is there a table out there with this info, I wont be shooting over 600 yds..... Any info or personal advice would be great
I am shooting 225gr Accubonds, 3150fps. handloads 93 gr of rl22 fed 215 primer.. Hope this helps
 
We would need more info., like bullet weight, muzzle velocity, are you using factory amo?

You can also go here and use this online application to create drop tables.
Is this drop chart very close.. checked it out. it isnt much different out to 500 or so.... an inch or 2 higher.. Have you used this before... Thanks
 
UltraMag45, (Trace 1) is for altitude = 0 and (Trace 2) is for altitude = 8000 ft. You'll find out that about 750 yards or so you can miss a whole deer just due to altitude change.

Notice that by just moving your rifle to 8000 ft of altitude, your zero is not any more at 300 yards; now it's at 308 yards and at 300 yards you're almost 1/2" higher which is the beginning of larger changes as the distance gets longer.

If you measure the scope height (from center of bore to center of scope) I'll do my best to make a drop chart for you.

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I believe it is standard 1.5......remember i am not using clicks as I have the b&C reticle. just wondering how many inches difference it would be from 400 to 600 yds than sea level... at 400 my gun drops around 9- 10 inches. 500 it is 24-26inches.. 600 46-48inches.... thanks
 
The drop chart above has been fixed to where you can compare bullet path at sea level and 8000 ft altitude all the way to 1000 yards. It's all in inches. That was done for 1.7" scope height.
 
WOW, thnaks for the info, Where did you get all of that stuff from... very valuable... I see it really changes from 400 out.. Now does your velocity go up at higher elevatons too, or is that figured in.. I have heard you can go up 50 -80fps at higher elevations as well.. thus making poi different... Again thanks for taking the time to help me out with this... I will probabily see the big buck at 200 yds and forget everything...... :)gun)
 
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