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Sighting question.
- Thread starter Mitchell0481
- Start date
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Personally, I like to know and sight in my rifle for maximum point-blank range. That is, within any distance from here to "there" the impact will be +/- 3 inches (1.5 for varmint rifles).
Now this does require some knowledge of the ballistics of the load. However, for .308, "there" (the maximum point blank range) is past 300 yards.
As for sighting in, you don't actually need a range that let's you shoot 300+ yards. You just need to know where the impact should be at the range you are shooting. For instance, a .243r should have a MPBR of about 280 yards. And if I want to hit my target out to that distance, I know that at 100 yards the impact should be 2.5 inches above the point of aim.
The beauty of this is that for any target out to MPBR, there's no need to make any adjustments in the field or and compensations.
Here's a good starter table:
Rifle Trajectory Table
Now this does require some knowledge of the ballistics of the load. However, for .308, "there" (the maximum point blank range) is past 300 yards.
As for sighting in, you don't actually need a range that let's you shoot 300+ yards. You just need to know where the impact should be at the range you are shooting. For instance, a .243r should have a MPBR of about 280 yards. And if I want to hit my target out to that distance, I know that at 100 yards the impact should be 2.5 inches above the point of aim.
The beauty of this is that for any target out to MPBR, there's no need to make any adjustments in the field or and compensations.
Here's a good starter table:
Rifle Trajectory Table
Fancy stuff. That's better than anything I have...
It appears that the reticle is set up to be zeroed at 100 for the top hash mark. Based on what grain of bullet and velocity you are getting from your specific load, you should be able to use that reticle to get close hits out to 1000 yards or meters (whichever it is calibrated for).
As long as you use the correct hash on your reticle, it shouldn't really matter what range you zero for. Make sure you verify that you are hitting close to your POI at different ranges though.
As long as you use the correct hash on your reticle, it shouldn't really matter what range you zero for. Make sure you verify that you are hitting close to your POI at different ranges though.
Fixed. You always hit the point of impact by definition.
Mitchell0481
Sharpshooter
Thank you for the info. I am going to a 750 yard range, so I will Zero at 100 and move on down the line and check my point of impact at each yard line.
. 750 will be the goal! Going to be shooting 168gr matchking HPBT.
got a few others to try out also.
sloughfoot
Grandmaster
I like that reticle. Your plan is good. 100 yard zero then check bullet impacts at each yard line.
PKendall317
Expert
Where exactly is a 750 yard range in Indiana?
I do the same but back up to the 50 and 75 yard marks just for reference.Thank you for the info. I am going to a 750 yard range, so I will Zero at 100 and move on down the line and check my point of impact at each yard line.
Hillside in Roanoke (huntington county) goes to 1k.
Mitchell0481
Sharpshooter
Bass and Bucks in Wabash. They will let you shoot 1000 on Sunday. You have to make an appointment to do that.
