ITOP 4-2-602 PDF



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Use the weapon sights to aim the weapon at the target aim point.

Requirement documents or the Request for Test Services may require that a complete pallet of the test ammunition be subjected to the The list below indicates many of the things to look for during the inspection. Euze function should be recorded by suitable instrumentation such as a video camera positioned perpendicular to the target.

Data Required 1 Deseription of the test set up, ineluding gun to impaet range. The number of eontainers, number of eartridges per eontainer, sample sizes withdrawn, and number of eartridges remaining for the 1. The test methods below for the more common terminal effects requirements are only general in nature must be tailored to each item. Electronic fuzes are the primary area of concern; however, consideration must also be given to E3 effects on non-electronic munitions. The ballistic match test is conducted to determine if two different projectiles have external ballistics similar enough that they can use the same firing tables, sight settings, range safety fans, etc.

The requirements for unrestricted use i. Ifop sand is often used as it may cause less projectile deformation and thus longer range ricochets than does steel plate. If water is used as an impact media, the impact angle must be controlled by raising the weapon above the 44-2-602 of the water and firing in depression.

The smoke cloud accumulated during weapon firing can obscure the target from the shooter. Prepare the drop package by placing the test items in their intended packaging and shipping containers and attaching them to the appropriate honeycomb or other shock absorbing system used in air delivery a parachute is not needed.

Also, AR requires that ammunition be designed to meet safety requirements for all climatic design values despite their chance of being used or the requirement to operate in those climates. Strength of design tests are conducted with inert loaded projectiles and fuzes to ensure that it is safe to proceed into the safety test using live loaded itip.


For most Recoilless rifle ammunition the package will be an overwrap containing two or more shipping and storage containers.

Determine the number of items for a drop eondition to determine the number required to start the 1. Use the task checklists for individual weapons and for crew served weapons contained in TOPPart II, for guidance.

This is an accelerated environmental test that simulates the rapid temperature changes that may be encountered during transportation, air drops, and transition from storage to a tactical application. The test is in two phases, high temperature storage and low temperature storage.

The inspections must be carried out in an approved facility by personnel certified in ammunition handling. The nominal velocity of the M2 bullet fired from the caliber.

Some experimentation may be necessary to determine camera settings, camera positions, and rounds fired needed to produce a useable video image.

The hazard classification documents risk levels for the shipment and storage of munitions. The target impact plate may block the path of projected fragments so its size and material must be carefully considered. Projectiles that imbed without detonating, or come to rest on the surface of the media, are fully armed and must be considered to be highly dangerous UXO.

Support weapons firing from the open-bolt position are prepared by leaving the chamber empty and the bolt in the seared position, these weapons must be subjected to the same safety review as for the closed bolt weapons. Minimize safety hazards by using cartridges without explosive charges and propellant. The firing rate should be verified prior to the aetual impact test. Record the muzzle velocity of each round fired.


Inspect any interior packing material for wear or other damage. This proeedure requires that the distanee between the weapon and target be varied between eaeh shot. The eontent of the ITOP is not eopied into this TOP due to the volume of information; the doeument must be studied to fill in the details of the proeedures noted in the test methods below. Fire any additional rounds needed to assure that the weapon is sighted on target.

There are many possible Reeoilless rifle ammunition tests that are rarely needed but should be eonsidered in the planning proeess.

Visually inspect gaskets and seals for loss or damage. Drilling must be done in a protective enclosure as there is a chance of propellant ignition; this is particularly true when drilling steel cartridge cases.


ITOP | Rough Handling Tests, Final Report | Document Center, Inc.

Pressure barrels Barrels ehambered for the test eartridge and ported for eleetronie or erusher type pressure gages. For Recoilless rifle ammunition, the ITOP procedure is somewhat simplified in that the five groups of ammunition are dropped, one round at ihop time, dropped twice in the following five orientations: Sight alignment is checked before each shot is fired.

The original configuration 4–602 the fuze should be preserved and reattached to the projectile body. Although test eeonomy must also be eonsidered, the sample size must be suffieient to provide reasonable assuranee that eomparison of test results against requirements will be meaningful.

The screens should be constructed so as to be easily portable since they may have to be moved many times in the course of the test. The test is done by firing under the required conditions until the specified number of fair hits is attained.

Larger caliber ammunition, particularly fuzed ammunition, should be weighed before and after being submerged. As a minimum, the meteorologieal data will be reeorded at the start of the test firings and just after the last round is fired. The cloud is also a signature effect that can reveal a firing position.

For artillery projectiles, half of the test sample is tested for 20 minutes at 5 Hz in the horizontal orientation and other half in the vertical base down position Projectiles using energy absorbing lifting plugs must have the plugs with the proper torque before and after the test.

At least twenty one projectiles are required. Fire the weapon both with and without muzzle devices, such as Hash suppressors and muzzle compensators, if the items are designed to be operator removable. Repeat the firing procedure if additional targets are need at different ranges or for different ammunition temperatures.

The data must be sufficient to permit evaluation of the test items susceptibility and its effect on neighboring systems. At the end of the 10 days of exposure, remove the ammunition and inspect it for evidence of adverse effects.