Range Equivalents

DiMP

DiMP

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Hoping someone who is better at math can help me with an idea I have. I have to drive a ways to find a flat and straight range that reaches out to 600+ yards, but the range I have a membership to is 10 minutes away and flat and straight out to 200 yards with rarely anyone there (the joys of small town living). So, what I was wondering is if someone knows the math, or what I would Google, to figure out range equivalents. Let's say I want to work up to shooting a 12" round plate at 1000 yards. If I set up clay pigeons (4.25" round), I'm sure there is a trig equation that would say "A 4.25" clay at 75 yards would appear the same size as a 12" plate at XX yards"
I know over shorter distances that bullet drop and wind drift are much less a concern, and I would have to compensate for the rise of the bullet at closer ranges, but I think it would still be great practice. Clays are cheap and I've already bent a bunch of heavy wire to hold them about 3 feet off the ground. I'd like to build an "equivalent range" course with the same visuals as shooting a 12" target every 50 yards or so out to 1000 yards

So, has anyone done something like this? Or know how I would "math" this?
 
MOA, (minute of angle) approximatly 1" at 100 yds, 2" at 200, 10" at 1000yd

Those are very simplified, but that's the basics.

You can also search for MIL radiant if you are useing mil scopes instead of moa scopes
 
MOA equates to 1.047” @ 100 yards and 10.47” @ 1000 yards. A 4” round @ 200 yards is a 2 moa target. You would need to shoot a 2” gong at 200 yards to shoot moa. I shoot moa size gongs for training. My smallest is a 3” AR500 attached to a strip of conveyor belt. I use it @ 300 yards.
 
What he said^^^^^^^^
You would have to set that clay up at 400yds to get a similar picture to a 12" at 1000.
A 1.2" at 100 and 2.4" at 200 is what you need.
 
12” target at 1000 yards is the same as a 100 yard, 1.2” target. The target will be growing 1.2” every 100 yards.

With a 4”. Clay. Place it at 333 yards to match the size of a 12” target at 1000. The target is 1/3 the diameter, so the distance is 1/3.

The closer target though will be significantly easier to hit though due to less wind and drop compared to the 1000 yard target.
 
Thanks guys for the insight. So, with wind and drop ignored, a 4" clay at the far end of our 300 yard range will be ALMOST equivalent to a 12" round at 1000 yards. I think next time I hit the range I'll try placing clay pigeons every 25 yards out to the 300 and see how far I can "walk" a rifle out. Makes me wonder.... how good will my eyes be using iron sights (ie: how far can I SEE a clay....)
 
DiMP said:
Makes me wonder.... how good will my eyes be using iron sights (ie: how far can I SEE a clay....)
Click to expand...
20/20 vision is aboot 1 moa, so you would be hard pressed to detect a 4" target outside 400 yards. Focusing on front sight, it would need to be closer than that. But nothing beats trying it out!
 
Juster said:
20/20 vision is aboot 1 moa, so you would be hard pressed to detect a 4" target outside 400 yards. Focusing on front sight, it would need to be closer than that. But nothing beats trying it out!
Click to expand...

Clays are cheap, as are the wire holders I made to hold them. I'll put a pile of them out then just know for the next time how far I can see
 
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