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Sight In my 243?

Discussion in 'Hunting, Fishing & Camping' started by Esox357, Oct 4, 2003.

  1. Esox357

    Esox357

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    Greetings fellow sportsman, went out purchased two boxes of shells for my 243 win for sighting in for deer hunting. I bought a box of 100 grain Rem Core Lokts and a box of 100 grain Winchester Power Points. How many inches above at 100 yards do I set the scope and how far will that let me take deer out to? Thanks Esox357
     
  2. mpol777

    mpol777 Feral Member

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    I would sight it in to zero at 200 yards. You'll be around 2" high at 100. The .243 win shoots pretty flat. Anything 200 yards and under just hold straight on and squeeze. I would still shoot it at targets from 25 yards out to 300. Ballistics tables will get you close, but nothing replaces actually doing it.
     

  3. tjpet

    tjpet

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    Sight in 3" high @ 100 yards - point blank out to 300 for a chest hit.

    Time saving tip: sight gun dead on @ 25 yards. Then check with a few shots @ 100. Should be approx. 3" high. Works well with cartridges in the 2800-3200 fps range.
     
  4. Esox357

    Esox357

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    Thanks guys, if I go the 3 inches high at 100, what will be the estimated point of impact at say 25 or 50 yards? Thanks Esox357
     
  5. riddleofsteel

    riddleofsteel Pulpa est valeo

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    If you can find the ballistic coefficent of the bullets you are using, you altitude, your scope hieght above the bore and your muzzle velocity I will run the figures thru my PACT II ballistic computer for you. It has been dead on in real life if I plug in the right numbers.
     
  6. Esox357

    Esox357

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    Thanks riddle, That is a little to technical for my ability I'm afraid. I will be using 100 grain corelokts or 100 grain winchester power points for right now is about all I know. How do you figure bullet coefficent? Thank You Esox357
     
  7. riddleofsteel

    riddleofsteel Pulpa est valeo

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    I am one of those old unreconstructed hunters that think that almost all .308, 7x57 and 30-06 based cartridges should be sighted in three inches high at 100 yards. Despite all the ballistic computer work I have done the figures still come out to about that.

    http://www.udarrell.com/243-winchester-100grain.htm

    Above is a link to an excellent table that shows what I mean. Assuming 3000 FPS with a 100 grain SBT bullet the sight in is 2.6 inches high at 100 yards. It takes 300 yards for the bullet to fall 3.7" below the line of sight. Assuming an 8" kill zone on the chest of a whitetail deer that gives you a PBR of a whisker over 300 yards. If you notice ft/lbs of energy has fallen off to 1191 ft/lbs at 300 yards. This is rapidly approaching the 1000 ft/lb limit I do not like to go below for deer.
    All that said, if you are getting close to 3000 FPS with your 100 grain bullet and sight in your rifle 3" high at 100 yards. All you have to do is aim and shoot at the center of a deer's chest all the way out to 300 yards.
    That is about as far as you should push a .243 anyway. Of course you have to hit what you are shooting at for it to work.

    LOL
    ;a
     
  8. Esox357

    Esox357

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    Thanks Riddle for your help. Most of my shots will be within a 100 yards, but I like to have the ability to 200 if necessary, anything over that I belive is off limits for my 243. Thanks Again. Esox357
     
  9. Guest

    The past 3 years now I've been using the same box of Winchester Power Points (100gr) while hunting. I've taken 3 mule deer and one wild pig (4 bullets) out of the same box.

    My stainless Ruger M77 Mk II really loves those Winchester loads I bought from Wal Mart. Very very accurate out to 300 yards!

    For an inexpensive bullet that doesn't have all the fancy packaging (bells & whistles) and groovy advertisement, those Power Points really perform.
     
  10. MI10mm

    MI10mm

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    I start out with a 25 yard zero on my 243s, all three of them. This will put you 3.5" high at 100 yards. This will, in turn, put you 3.5" low at 279 yards. You can shoot out to that distance with zero hold over. This seems to work well for most 243 deer loads.
     
  11. Esox357

    Esox357

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    Thanks everyone, I went out and shot 40 rounds, I was pleased with the mild recoil rifle. I did not get it totally sighted in, since I did not have a bench rest to sight in but sighted it off a bag. I plan on fine tuning it. I think I have the windage locked in but need to adjust the elevation because I was shooting over 16 oz pop bottles at two hundred yards. Esox357