Manual
SIGHT ADJUSTMENT
Use a coin or large screwdriver to adjust the windage
by the two screws on each side of the front sight block.
Before turning a screw clockwise (in) the opposite must
be backed out the same amount. 1/8 of a turn changes
the point of impact 1" at 100 yards (1 m.o.a.) One full
turn 8 m.o.a. By turning the left screw clockwise (in) the
sight moves to the right and the point of impact to the
left.
Before tightening the screws, the post may be pushed up
or down to adjust elevation. .004" will change the impact
1 m.o.a.
DO NOT OVERTIGHTEN.
BALLISTICS
Your SUB rifle has been test fired and sighted in at
100 yards before leaving the factory. However, due to
different ammunitions, positions, shooters etc. your
rifle should be zeroed to your personal preference.
As seen from the graph on page 16 the bullet first
crosses the line of sight at about 20 yards. This is
normally sufficient, but if 100 yards are available the
results should be verified at the actual range. Within
this range the trajectory is flat, deviating less than
two inches from the line of sight. At close range and
high power ammunition the SUB rifle has the energy
of a .357 Magnum.
The maximum range of a pistol bullet is about one
mile. At 200 yards the projectile still has more energy
than a .380 ACP fired at point blank range. However,
at this distance the mid range trajectory is about 18"
and the wind deflection is considerable when compared
to a full power rifle.
It should be noted that ballistic precision of the pistol
cartridge has a wide variation. During extensive
tests of commercial ammunition in a Mann barrel, the
best 10 shot groups were about 2.5 m.o.a., the worst
up to 10. Premium US manufacture hollowpoints of
medium bullet weight performed best. Worst were US
generic FMJ and non-european imports.