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Rx zeroing

This is a discussion on Rx zeroing within the P250 & P320 Modular Pistols forums, part of the SIG Sauer Pistols category; Hey guys. Had a question regarding the Romeo 1. I picked up a rx slide from someone and he had it zeroed to him. I ...


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Old 05-17-2017, 08:04 PM   #1
Ltn
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Rx zeroing

Hey guys. Had a question regarding the Romeo 1. I picked up a rx slide from someone and he had it zeroed to him. I got it and finally took it to the range. However when I shot for the first time it was shooting low and to the left. I know it wasn't my trigger pull because once I got it to where adjusted the shot went where the dot was pointed. My question, does zeroing an optic change depending on the shooter? I'm new to the optics world and thought if it was zeroed it was good for everyone.


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Last edited by Ltn; 05-17-2017 at 08:12 PM.
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Old 05-18-2017, 04:27 PM   #2
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Ltn, it can. So many variables. Sight it for you (on a rest) and your good to go.
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Old 05-18-2017, 07:45 PM   #3
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Changes based on ammo, weather, shooter, distance, current planet (gravity) etc.


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Old 05-19-2017, 05:23 AM   #4
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Quote:
Originally Posted by Ltn View Post
Hey guys. Had a question regarding the Romeo 1. I picked up a rx slide from someone and he had it zeroed to him. I got it and finally took it to the range. However when I shot for the first time it was shooting low and to the left. I know it wasn't my trigger pull because once I got it to where adjusted the shot went where the dot was pointed. My question, does zeroing an optic change depending on the shooter? I'm new to the optics world and thought if it was zeroed it was good for everyone.


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About 75% of the new guns I bought shot low and right (I'm left handed, that's the same as low and left for you) in the beginning.

I never adjust the sights on the first or second time I shoot it. After getting my grip and trigger finger position right for that gun, the sights usally are also correct.

Every gun is different (even the same make and model).
Every shooter is different.
There are more Indian problems than bad arrows.
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Old 05-19-2017, 05:43 AM   #5
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My answer would be no it does not change depending on the shooter. The bullet goes where the muzzle is pointed. Any sight needs to be aligned to that same spot, and who or what pulls the trigger really should have nothing to do with it.

A shooter who pushes the muzzle off target when pressing the trigger, and consistently does so the same way, may choose mis-align the sights to compensate for his shortcomings rather than fix his technique. If the previous owner has done this, then you simply needed to zero it in because it wasn't.

If you are not shooting from a solid rest you have not zeroed in the sight, unless your freehand technique is flawless. Use a rest, and squeeze the trigger slowly, you can tell if you flinched, or pushed or pulled, off target, especially with the reflex sight. If you do move it, try again until you are confident it was rock steady, then adjust the sight so point of aim is the same as point of impact.

This video (it's for rifle, but the theory is the same) really helps with the whole POA POI idea...at least it did for me. It was hard to get the idea that we're not really changing where the bullet goes, we're changing where we are aiming. I'm not saying you can do it this easily with a pistol, rifles are much easier to hold still...but like I said the idea is the same.

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Old 05-19-2017, 08:25 AM   #6
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Reading your original post closely, you bought only the slide... but not the barrel. Correct?

Slight manufacturing tolerance differences, wear differences, etc., can make for a different POI.
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Old 05-19-2017, 08:39 AM   #7
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Hey sorry. I'll clarify. I bought the entire slide assembly. Barrel, recoil spring and rod.


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Old 05-19-2017, 09:24 AM   #8
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I've found the red dot to be an excellent dry fire training tool. I use it to see how much movement the dot has when I actuate the trigger in various ways. If I can't keep the dot on the doorknob across my house, it's moving too much.

I've also used it to evaluate how different size grips can effect muzzle movement. While I thought the Small size grips felt better, it became very clear that the dot moved CONSIDERABLY more.
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Old 05-19-2017, 09:29 AM   #9
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Originally Posted by jnichols2 View Post
There are more Indian problems than bad arrows.
Very well said!
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