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Join Date: Jan 2008
Location: Pittsburgh, PA 2B
Re: Can sight in @50yds for 100yds?
as usual, i'm gonna break from convention.
What's your intended purpose with a zero at 100 yards?
if it target shooting, you'd likely already know the answer that to know EXACTLY where you are hitting at 100 yards, you have to SHOOT at 100 yards. No .308 competitor would show up at a 600 yard match after only ever having shot at 100 and 200 yards. Knowing your ballistics tables WILL get you CLOSE, but not dead on. too much room for error.
Likewise, if your hunting or hitting groundhog sized targets at that range, then the hit is more important that which freckle you hit. groundhogs have a 3" kill zone in the chest, with a 1" brain, but to be honest, anything hitting dead center, from the lower chest al the way up thru the head will kill it (with the .17HMR)
So...if targets - then go out and shoot at 100 to know exactly. if hunting, then your goal is MPBR. Sighting a little high at 50 will put you in a 3" kill zone holding a dead aim all the way out to 150 or so...
Besides...i really doubt you or very many other people on this board can guess yardage so well that they can tell the difference between 70-100-125 yards. so put the math of ballistics in your favor, know your limits and KISS.
Feral Cats are God's version of Ballistic Gelatin. - anonymous from another forum