when the bullet leaves the barrel it is still climbing and at 25 yards it is possible it has not reached the top of its arc,so at 100 it is very probable that it woulb be very high if dead on at 25.The downward angle of your shot will also have the same effect depending on the angle,NEVER sight in a rifle on anything but a level range if you are concerned about accuracy,when you shoot up or down hill at a long range you have to take this into consideration,at 100 yards the effect should be almost unoticable with a cartridge moving as fast as the 7mag.I would go back and keep droping you POI until you get it zero'd at 100 then try one at 25 and learn your rifles arc of trajectory,continue at different ranges,50,75,150,250,ect ect until you know how your bullet drops at these diastances,once you learn the rifle shooting at these distances will become second nature.

I usually skip the 25 yard part and begin at 50 yards, get it about 1 inch high, then move back to 100. Use big target papers, so if the bullets are hitting way off, you can still find out where.

THE RANGE IS SET FOR 25 AND 100 ILL HAVE TO GET A BIG PIECE OF CARDBOARD FROM WORK AND TRY TO FIND AWAY FOR MY RIFLE TO STAY IN 1 SPOT

Good advice!

In addition, most of the rifles I've sighted in at using 100 yard targets ended up with bullets shooting 1" to 1 1/2" low at 25 yards.

Read the directions on the scope in the Instruction Manual and move the crosshairs the way it says to do so - following the example of a bullet so many inches off the bullseye and adjusting the knobs accordingly.

Remember 1/4 of a click = 1/4" at 100 yards.

Ok, so set your target halfway between the 25 and 100 yard mark. Although lots of people use a 25 yard target first, I find 50 to be better, a lot can change in the 75 yard difference between the 25 and 100 yard marks.

is it possible that i shot to fast i say i was at the range about 1.5+ hours and that my inaccuracy could have been cause by barrel overheating

is there a recommended time frame of bullets to minutes like no more than 3 bullets in a 5 minute period or something along those lines

Shoot 3 shot groups, take your time doing them, and let the barrel cool for a few minutes between groups. 3 shots, take a break, then 3 more. Just don't rapid-fire your rifle, the 7mm Magnum burns a lot of powder, so this could accelerate barrel erosion. It's not that the rifle is innacurate, it simply is not properly sighted in yet.

i was so dissapointed in yesterdays shooting that today i kept rerunning the steps i was taking in my head to correct the situation, and i think i figured out my problem. my shots were about 6-8 inches to the left and high sometimes lower ,when i readjusted my crosshairs i went to the RIGHT instead of the left thinking that would move my bullet over the amount that i was off torward the bullseye of the paper ,which would have in turn doubled my being way off to the left and just completely taking me off the paper entirely, im kicking myself in the A$$ right now, now that i have said that is that where my potential problem was and if i dont make the same mistake again i should get in the black by the bullseye right

Try removing the scope, rings, mounts, and bases, put them back on, and start again. Sometimes that helps.

try taking along a more exsperienced shooter next time