User Instructions for the Bench Rest
®
Powder Measure
Issue 3
1.0
GENERAL INFORMATION
The Bench Rest Powder Measure keeps your powder flowing
evenly. Its long, narrow, powder-charge reservoir minimizes the
amount of powder shearing for each and every charge.
The vernier scale on the charge arm lets you control minute
changes in capacity. The charge arm meters the powder and
dispenses a flow of consistent charges using your choice of gun
powder. For example, it will measure from 2½ grains of Bullseye
®
to 95 grains of IMR
®
4320 or Alliant Reloder
®
15.
The powder hopper is designed to eliminate variation in charges
due to changes in the volume of powder contained in the hopper.
The small outlet on the hopper serves as a built-in baffle,
regulating the powder leaving the hopper and entering the
measure in a uniform manner.
Figure 1. Powder Measure Overview
2.0
SAFETY INFORMATION
Please follow all pertinent safety procedures such as
wearing safety glasses, being in a well-lit and well-ventilated
workspace, and having all reloading tools in top working
condition and no flames, sparks or static electricity.
Always follow instructions and tables from a reliable
reloading manual to determine proper powders, bullet
weights, and primer types.
3.0
INSTALLATION
3.1
Assembly
The Powder Measure is shipped to customers fully assembled.
To begin measuring,
1.
Mount the device to your workstation, as described below.
2.
Load the Powder Hopper and Cover into the top of the Body
Casting (Fig. 1).
3.
Check to see that the Locknut (010631-021) on the Cross
Bolt (010631-026) is tight. This will serve to remove any
excess play between the iron castings (Fig. 3).
4.
Secure the Drop Tube (010631-027
xx
) lightly with the Set
Screw (010631-013).
3.2
Mounting
Three methods are available for securing the Powder Measure to
different work surfaces.
3.2.1. Clamp to Table Edge or Board
The C-clamp (Fig. 1) opens to
receive boards up to 1¼" wide.
3.2.2. Screw to Workbench or
Board
The top of the C-clamp casting
contains a hole for a woodscrew.
3.2.3. Clamp to Optional Powder
Measure Stand
The Bench Rest Powder
Measure Stand (017941)
securely holds the Powder
Measure in place. See Fig. 2.
4.0
PROCEDURE
WARNING
PERSONAL INJURY
Only use smokeless gun powder in the Powder Measure.
Never mix powders.
Failure to comply with these instructions could result in
death or serious injury.
To initialize the charge chamber for a specific volume of powder,
1.
First, make sure that the internal powder-flow channels are
thoroughly cleaned of any residue from previous usage.
2.
Loosen the Thumbscrew (010631-022) on the Charge Arm,
in order to drop the Charge Bar (010631-024) to its inner
position. Tighten the Thumbscrew.
(The Charge Bar has two settings
– inserting the
Thumbscrew into the
“outer” hole allows it to hold charges of
approximately 2 to 37 grains of powder, and in the
“inner”
hole approximately 37 to 95 grains [see Fig. 3 for the
Thumbscrew setting positions on the Charge Bar].)
This step assumes that you need to reset to the lower
“outer”
amount; otherwise, proceed to step 3.
3.
With the Charge Arm handle in the down position (at
6
o’clock, when facing the Arm), pour the desired weight of
powder from your scale pan into the empty Hopper (010631-
025). The powder will flow into the Charge Arm.
Figure 2. Optional Stand
Cover
(010631-025-LID)
Iron Body Casting
C-Clamp for
mounting to
reloading bench
Iron Charge Arm
with Vernier Scale
Hopper
(010631-025)
