Need urgent help! Zero in gun.
 

At what distance do I zero in my .270? 25 or 50 yards. I know that when a bullet is fired it is flat for a short distance then rises and then begins to fall. I have found several trajectory tables showing me that at 100 yards I am probably 2.5 inches high at 200 yards 2 inches high and at 250 dead on. But at what distance does the bullet start to rise 25 or 50 yards. Rifle season opens Saturday.

Edited by - Christine B on 11/05/2002 19:34:56

RE: Need urgent help! Zero in gun.
 

Zeroing it at 25 yards should put you about 1.5-2" high at 100. You should then be in the ballpark. However, this is only a starting point. It really depends on the ammo you use. You still need to finetune it at 100 yards. I would not hunt with a rifle that I had not fired at least a few rounds at 100 yards. Zeroing at 50 would make it about 1/2" high at 100, zero at 150 and -2.4" at 200. Assuming using 130 grain bullets.

Also, bullets don't rise in the technical sense. It starts to fall in relation to a straight line as soon as it exits the barrel. The reason it seems to rise is because the scope it higher than the barrel, therefore the barrel is pointed slightly up in relationship to the scope and the scope is pointed slightly down in relationship to the barrel. In other words the bullet does rise in relationship to a straight line of sight because the barrel is pointed above the straight line.

Hope this helps.

Edited by - txhunter58 on 11/04/2002 21:26:56

RE: Need urgent help! Zero in gun.
 

The bullet don't actually rise from the barrel, it drops from the split second it leaves until it hits whatever, It may pass thru the line of site do to the angle of the barrel against the line of site and the way your scope or sites are set in. The very best way to tell where your gun is hitting at a hundred yards or 2 hundreds yards is to shoot it at that distance.

RE: Need urgent help! Zero in gun.
 

LOL txhunter58, we must have been typing about the same time.

RE: Need urgent help! Zero in gun.
 

I shoot a ruger .270. I use 130 grain winchester supreme ballistic silvertips. You don't really need these. Regular remingtion core locks at wal-mart will suit you just fine. For average to modest ranges, sight your gun in dead on at 50 yards. This will also be dead on at 200 yards and 1 inch high at 100. Can't go wrong with this. Whatever you do, stick with the same ammo that you sighted your gun in with.

RYAN SMITH

RE: Need urgent help! Zero in gun.
 

txhunter and strut nailed it right on the head! Best advice...take it to a range and shoot it...<img src=icon_smile_big.gif border=0 align=middle>

Hunt Safe!

Jack

RE: Need urgent help! Zero in gun.
 

That will do it.

Keep 'em all in the Bull.