View Full Version : Sighting in a handgun scope
Sikowski
10-28-2003, 04:44 PM
I am sighting in my first handgun scope. The range I shoot at has a maximum range of 25yds. Where should the impact be at 25yds to be relatively close to zero up to 100 yds? I have looked for ballistics info on the SW500 and UltraMax 330gr ammo, but have not been able to find anything. Any help would be appreciated.
Thanks,
Redhawk1
10-29-2003, 04:11 AM
I sight my hand guns in 1 inch high at 25 yards. But you have to go out and shoot it at 100 yards to make final adjustments. When shooting at 25 yards it takes a lot of adjustment to the scope to see impact movement. That small movement at 25 yards is a lot of movement at 100 yards. 25 Yards is to get you on paper. Once I do a final sight in at 100 yards I can then check my zero at 25 yards. But do not make adjustments at 25 yards. There maybe some that disagree with me but I know form experience it is true. That is why so many people either have misses or bad shot placement when they try a 100 yard shot with a gun sighted in at 25 yards. Without doing a 100 yard final adjustment.
Sikowski
10-29-2003, 03:57 PM
Thanks for the help. My guess was a couple of inches high. I had planned on getting 'close' at the 25yd range, and finalize it out in the field.
Hammer
11-30-2003, 09:40 PM
Thanks for the help. My guess was a couple of inches high. I had planned on getting 'close' at the 25yd range, and finalize it out in the field.
I recently went through the same sighting-in process with my S&W 500. I used the tables generated on this site's program
http://www.geocities.com/Yosemite/Geyser/6125/index.htm
to find where I needed to be at 35yds. to set my zero where I wanted. Then I shot it at 100yds. & finalized settings. Hope this helps.
Big Bore
12-01-2003, 09:02 AM
IF the scope is 1.5 inches above CL of bore to CL of scope, and IF the bullet you are shooting has a BC of .156, you MIGHT have a 100 yard zero if you sight in so your bullet hits 1.17" high at 25 yards. As you can see, there are a lot of ifs and mights so you MUST check your zero at 100 yards. Elevation, temperature, barometric pressure, wrong guess on BC, all will affect down range zero so anything we do on paper is just a guess. The game you hunt deserves better than a guess. Either shoot to finalize zero at 100 yards or limit your shots at game only to the range where you have verified zero. Even the .500 S&W will not kill quickly if the bullet goes in the wrong place.
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