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  #1  
Old 01-04-2007, 09:44 AM
aka bushmaster
 
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Default Need some info on my .204..

I recently got a .204 in a Rem 700 SPS. I sighted it in at 1" high at 25 yds. and it seems to still be high at 200 yards. My question is, what should I set it for at 25 yds. to have it zeroed at 200 ?? I'm shooting factory Hornady ammo right now, 32 grain. I just got some 40 grain and haven't shot them yet. Its been too windy since I got it to do enough shooting to figure out the long range stuff. Thanks for any input.
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  #2  
Old 01-04-2007, 10:42 AM
aulrich
 
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I ran basic numbers through this Balistics Calculator and at 25 yards you need to be almost an inch low, you don't cross the line of sight till aroung 60 yards. You have to remember the 204 is one flat shooting round.

I like knowing that first intersection value because if your gun takes a hit and you want to recheck zero you pace out that first intersection value and fire a couple of rounds you'll be able to get a good idea if your in trouble.

it's no replacement for sighting in at actual range but it a good guage.

I would consider sighting in for 250 you might as well get the most out of the round.
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  #3  
Old 01-04-2007, 10:43 AM
aka bushmaster
 
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Thanks, so I would be looking at about 1/2" low at 25 to be zeroed at 250 ??

And I just discovered the Hornady site has its own ballistics calculator...but where do you get the BC from ??
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  #4  
Old 01-04-2007, 10:52 AM
sheep hunter
 
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You'd need to know the muzzle velocity and bullet BC to run it through a calculator but the only way to get a certain 200 yard zero is to shoot at 200 yards.
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  #5  
Old 01-04-2007, 11:05 AM
aka bushmaster
 
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I just want to get it close to zeroed at 200 by starting at 25...I'll tweak it when/if the wind quits !!>:

Its a 32 gr. Vmax with a muzzlevelocity of 4225 fps.
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  #6  
Old 01-04-2007, 11:10 AM
aka bushmaster
 
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Here's what I found on their site....I had seen it before but didn't check the muzzle trajectory...kinda tells me what I wanted to know.





Trajectory (inches)
Muzzle 100 yd 200 yd 300 yd 400 yd 500 yd
-1.5 0.6 0.00 -4.1 -13.1 -29.0
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  #7  
Old 01-04-2007, 01:00 PM
nube
 
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I'm with sheep hunter on this one. Shoot it so your hiting the spot you want it at 250 yards. It doesn't get any easier than that unless all you have is a range to 25 yards and in this case you still need to shoot it at 250 to make sure anyways.
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  #8  
Old 01-04-2007, 01:01 PM
aulrich
 
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Link to hornady bullet catalog for 20 cal

Click on the link View Ballistics there you will find the BC. I screwed up on the BC so my number will be alittle optimistic.
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  #9  
Old 01-04-2007, 06:34 PM
depopulator
 
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For all the good zeroing at 25 yards will do (and zeroing 1/2" low at 25 for a "250 yard zero" - WTF?) ya may as well bore sight it and call it good to 500 yards :eek :lol
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  #10  
Old 01-04-2007, 07:43 PM
aka bushmaster
 
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dp, I have no idea where you're coming from with those comments. In my original post I thought I made it clear that it is too windy (and has been for days) to accurately shoot any distance.

And every gun I have ever sighted in, I always start at 25 yards.
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