Made in USA
This BERSIN Ammunition Measuring and Adjustment Device
is a revolutionary
precision shooting. The device diagnoses and eliminates errors
in the longitudinal axis
Unlike other tools, the device allows each cartridge to be solidly fixed within a replica of a rifle
cartridge chamber for measuring purposes.
Its accuracy of measurement - particularly of repeat
functions - is unique. Furthermore, this device is the only existing tool available today which allows
you an exact adjustment of cartridges containing concentricity
flaws with respect
alignments of the projectile within the cartridge case. In addition, the device discovers uneven
cartridge case surfaces and irregularities in the seating depth (total length) of your ammunition.
types and calibers of ammunition
manufactured ammunition generally contains errors of 4/1 ,000" to 20/1,000" (measured in the region
of the projectile's tip). Flaws of up to 40/1,000" are not uncommon. A shot at a distance of 300 yards
with such a shell will forcibly miss its target by approximately a foot due to the provoked rotational
Even carefully reloaded cartridges may contain errors of 4/1 ,000" or more, caused by minor mistakes
in the reloading process, such as a bad angle of insertion of the projectile in the case mouth. The
device generally reduces these errors to 1/1,000" or less.
Through the alignment of the projectile's axis with the axis of the cartridge case, while firing the
cartridge, the projectile is pressed in a precise manner into the barrel throat. This avoids rotational
imbalances of the projectile in the barrel and in the trajectory.
Rigorous testing in different atmospherically neutralized facilities has confirmed the efficiency of the
BERSIN device and has demonstrated, that by means of a simple process of manual measuring and
adjustments of the new or reloaded ammunition, the precision of your rifle sho