USMC BZO TARGET PDF

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ammunition, and a target, zero a Rifle Combat Optic (RCO) to a service rifle to ensure Point of Aim (POA) equals Point of Impact (POI) at USMC SERVICE RIFLE WITH M7 RCO. DATE: .. group in a predesignated location on a target meters/yards, from a specific firing . Otherwise good zero. 1: SET REAR SIGHT ELEVATION TO ONE CLICK PAST THE 8/3 SETTING. 2: AIM AT TARGET CENTER AND ADJUST SIGHTS TO BRING SHOT GROUPS AS .


Usmc Bzo Target Pdf

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These files are Adobe PDF's; you need a program like Acrobat Reader to M16/ AR15 A2 25m zero: The same target used by the military to zero the M16 rifle. Does anyone have an electronic copy of the M4 m zeroing target? Something high-quality and to-scale? I recently used the A2 target to zero my rifle per USMC 25m zeroing . kaz-news.info I'm currently looking for a location that sells the USMC BZO target. LCpl Christopher Barnhart, do you mean te target with the three miniature B-mod kaz-news.info~deneb/doc/targets/kaz-news.info

Everything here is free! If your printer is configured correctly, they will print exactly as described and can be used to calibrate your sights.

If your favorite target isn't shown here, email me with a request and I will add it to the list. Please don't ask me to make something stupid; these are professional-quality targets for precision shooting. You can get that kind of stuff from other non-marksmanship-related target sites.

Please do not modify my targets and redistribute them without my permission. If you discover an error, please let me know and I will credit you for the correction. Includes instructions.

See Army FM for more info. M4 Carbine 25m zero : The same target used by the military to zero the M4.

BATTLE SIGHT ZERO (BZO): Who has it right?

Graded silhouette : Magnified silhouette from the zero target above, with rings calibrated to nothing in particular. For simulating long range with handguns or combat rifles.

Range silhouettes : Scaled silhouettes at 50, , , , , and meters. When placed at 25 meters, simulates an Army qualification range. Use indoors or if your range is too small. Even though this will be presented from a practical perspective, a little physics will be included to help make sense of things.

Trajectory Physics The graph below shows the theoretical trajectory for the Federal XM 55 grain round zeroed at meters yards. Note that the vertical scale of the trajectory has been greatly exaggerated so that the curve is easier to see.

Although the rendering of the curve has been exaggerated, it is still numerically correct. The first thing to notice is that the bullet trajectory does not, in general, coincide with the line of sight. This may be a remedial fact to some but for me it was something that I had not fully considered before. I simply had a fuzzy notion of the bullet more-or-less following the line of sight. There are two primary reasons for this mismatch between the trajectory and line of sight: Line of sight is a straight line ray of light , whereas the trajectory of the projectile is a curved path; neglecting air resistance it is a parabola.

Improved Battle Sight Zero

When factoring in air resistance, the trajectory deviates from a parabolic path, especially at longer distances, but in any case the point here is that the trajectory is a curve. The line of sight is not in the same plane as the barrel more precisely, the center of the barrel. This means that when the bullet exits the barrel, its position does not coincide with the line of sight, and its trajectory starts with a deviation from it.

There are other reasons why the trajectory does not coincide with the line of sight, but they need not be discussed here. As the bullet travels it moves towards the line of sight, until it reaches the first cross-over.

Note that this upward motion of the bullet is not due to a lift force as is sometimes believed, but is simply the result of the way the rifle is sighted and the resulting small angle between the barrel and the line of sight.

After the projectile reaches the first cross-over, its trajectory takes it above the line of sight for some distance, until it falls back down to intersect the line of sight at the second cross-over.

Non-silhouette zeroing targets for hyper-politically-correct gun clubs

From here the bullet continues to descend until it reaches the end of its flight. The table below shows properties of the trajectory for the Federal XM 55 grain round zeroed at meters yards.

It is an alternative view of the same data shown in the previous graph. The first cross-over occurs at about 30 meters, with the second being at meters corresponding to a meter zero.

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The height of the trajectory peaks at meters, with the maximum deviation being 6. This means that at the maximum height of the trajectory, the bullet is 6. All of this goes to explain the following.

From the muzzle to first cross-over at about 30 meters , the bullet strike will be low. At about 30 meters, the bullet will hit at line of sight.

From 30 meters to meters, the strike will be high, with a maximum high-strike of about 6. At meters sight-in range , the bullet will strike at line of sight. From meters and beyond, the strike will be low.

Note that most ARs have a rear-sight elevation adjustment which is designed to alter the trajectory to account for ranges past the meter mark. It should also be noted that the initial deviation the vertical distance between the center of the bore and the line of sight at the muzzle varies between different types of ARs, and this does have an effect on the trajectory.

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The data above was calculated using an initial deviation of 2.I will ever guard it against the ravages of weather and damage. The meter mark is aligned with the mark on the left side of the receiver.

This is a great test of basic marksmanship, as well as provides Marines with confidence in themselves and their weapon. This is a nice feature and helps to eliminate much of the guess-work and errors involved when obtaining a zero.

To make matters more confusing, many more lesser-known zeroing techniques exist, adding to the plethora of potential choices. Dont frustrate yourself trying.