watching mirage with parallax turned back

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Minuteman
Mar 6, 2017
71
15
Hi all,
When shooting alone (without spotter), I don't know what to do with parallax. First, I adjust parallax so that the reticle and target are on the same plane. Then I dial the parallax back (closer to the shooter) to get a look at the mirage approximately 2/3 downrange. At that point, do you turn the parallax quickly back to the target plane and shoot, or do you leave the parallax at the level of the mirage in which case the reticle and the target are not on the same plane?
 
If you leave it focused shorter than your target distance, you will introduce parallax error into your aim. It will also make it difficult to spot hits with the target out of focus.
 
If you leave it focused shorter than your target distance, you will introduce parallax error into your aim. It will also make it difficult to spot hits with the target out of focus.

Agreed. My personal belief is that mirage is useful in a light wind condition. Once the wind speed is above 7 mph, the mirage will be flat. Use other tools to determine actual speed and direction. A hand held wind meter, local weather reports, etc...can aid in what your wind hold should be. Every circumstance AND range type may be different.
 
As a former High Power Service Rifle competitor, I generally dial my spotting scope to be in focus about 2/3rds of the way to the target (e.g. 200 yard line when on the 600, 400 yard line while on the 1000). Even if I'm using a scoped rifle (e.g. F-Class format), I will still use my spotting scope for mirage.