NRL22 Parallax

[jugi16]

Curious how shooters shoot stages and adjust parallax at multiple distances during competition.

Let's say you have targets at 50/80/150 just as an example. Could be any range of distances. Do guys save time and adjust to one parallax setting before the stage or do you adjust every distance depending on target size knowing it may not really be a factor, or adjust knowing it may make or break a hit.

Cheers

 

[Jack_L]

All depends on the stage and time management.
I shoot PRS Rimfire, but the case is identical.
For a 50/80/150 stage, I would most likely start at a 50 yd parallax for both the 50 and 80, and roll to 150 for the 150.
I would most likely run that stage with an 80 yard zero dialed on, hold under 1mil for the 50, on at 80, and hold 3mils for the 150.
That will give me time to make the parallax adjustment needed for the 150, where I want to be able to see the projectile as it drops in.
This assumes that the 50 yard target is pretty small, and generally they get pretty beat-up really fast, and shooting with a possible parallax error up close can be more problematic than at distance, although in this case the 80 isn't very forgiving either.
Smaller targets and targets without a reactive backstop get more attention to parallax than larger targets or targets that I will have a harder time seeing misses *generally speaking*.
I tend to prefer to not hold for more than 5mils, and I will tend to adjust parallax for targets inside 50 or so, and outside 100, following the general considerations for size and backstop. If I have time, I'll dial and roll parallax for each target.
I'm not doing a full parallax check between targets, I'm just quickly rolling to the "close enough" area for my optic.

 

[Lowlight]

Fixed it, wrong link

The ABCs of eliminating Parallax

Follow Sniper's Hide and pick up the latest information on all things precision rifle related. Sniper's Hide Training is for the serious tactical marksman.

www.snipershide.com

 

[b6graham]

depends on stage design, target size and the scope too. some are better than others at 'allowing' bad parallax

 

[Rio Precision Gunworks]

So, parallax is *not* angular like most everything else in precision rifle. It's a linear measurement that is controlled by the size of the objective lens. What this means, it's a *much* bigger deal at closer ranges than at distance.

Since rimfire is usually close distance, if the targets are very small, you'll want to definitely check your parallax via head movement for the small targets. On the larger targets, just make sure the target is in focus and you have clear edge to edge sight picture. Can also just dial the parallax to the approximate distance on the dial for larger targets.

For example, here is the max parallax error for your 50, 80, 150 targets with the parallax set at 50, 80, and 100yds (parallax distance is the green box).

Keep in mind, this is the *max* error with a 56mm objective. That means you'd have to have your head/eye jammed to one side of the diopter where the reticle is all the way at the other side of the sight picture.

 

[Rob01]

depends on stage design, target size and the scope too. some are better than others at 'allowing' bad parallax

Yup will depend on the target sizes and scope. Some scopes have a little better ability to work with varying ranges. And in the 50/80/150 if the 50 was big enough I wouldn't worry about it and would set parallax to the 80+ area. You can always adjust a little on the clock too if needed.

 

[Rio Precision Gunworks]

The TLDR version for me:

If I'm using a very good rifle with very good ammo.....as long as the targets aren't the smaller side of the stuff like KYL racks or the 1" hangers at distance or odd position.......I'm just going to make sure the target is in focus and I have a clear edge to edge sight picture. I'm also going to be using an optic such as a ZCO. So you'll need to be familiar with your optic as others have stated.

On the very small targets, you'll almost always have enough time to dial your parallax in as long as you didn't waste time on something else during the stage.