RIFLE 
COMPENSATORS 
HE Compensator was originally de¬ 
veloped to increase the fire effect of 
infantry by greatly reducing the recoil 
and jump of single shot and automatic 
weapons, thereby giving full control and 
increasing the number of hits per man, at 
the same time practically eliminating 
recoil fatigue. It is a new invention and 
makes for greater accuracy both in the 
gun and in the shooter. 
It has a distinct value in the sporting 
field on high powered rifles in addition 
to the improvement in the accuracy of 
the rifle, by reason of the fact, that for 
the hurried shot, or second 
emergency shot, recoil may 
be disregarded entirely, thus 
saving the time which is in¬ 
voluntarily used in obtaining 
position. The rifle may be fired 
and the shot repeated from any 
position of delicate balance, an 
exceedingly important consid¬ 
eration in all big game hunting. Com P ensator 
In the High Power field the Compensator has 
the following advantageous effects, which are 
major, as well as many useful minor ones. 
1. Material reduction in foot pounds and 
kinetic energy of recoil. 
2. Reduction, and in some applications com¬ 
plete elimination of jump. 
These two effects are of great importance to 
the shooter; when the punishment is removed 
from the recoil, flinching is overcome or does 
not develop, and an indefinite number of 
rounds may be fired without ill effects, the blow 
being felt more as a light slap, than a punch. 
3. Increased accuracy and increased accurate 
barrel life, due to dampening of the barrel whip or 
vibration. 
Attention is invited to the illustrations on Page 
4 showing the appearance of the Compensator on 
the most popular high powered 30 caliber rifles. 
For the present the rifle Compensator will be 
furnished only for the following arms: 
Model 30 Remington Express caliber 30-’06 
Model 54 Winchester caliber 30-’06 
U. S. service rifle Model 1903 caliber 30-’06 
U. S. Springfield Sporter Model 1903 caliber 
30-’06 
U. S. Krag rifles or carbines caliber 30-’40 
And any other take down 30 caliber rifles whose 
muzzle dimensions are approximately the 
same as the rifles mentioned above. 
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SHOTGUN 
COMPENSATORS 
tf'VEN though including the very valuable 
■ Li features of recoil and climb reduction which 
are mainly considered in the use of the Compen¬ 
sator on rifles, a more valuable field lies in the 
pattern control permitted by the Compensator 
when attached to shotguns. This has been 
worked out in so practical a manner, that with a 
single Compensator gun and six small pattern 
tubes, the entire range of shotgun use, under 
every possible condition of game and country, is 
covered. Not only is this the case, but the vary¬ 
ing conditions of the day, or a change in game, 
may be met by simply changing pattern tubes in 
the same gun, the five extra guns, as it were, being 
carried in the pocket. 
The somewhat explosive effect on the column of 
shot, due to the discharge of the interior gas 
pressure, takes place while the shot column or 
mass is traversing the expansion chamber of the 
Compensator. Powder wads are practically torn 
to pieces by the Compensator action and never 
again drive or pancake the rear of shot column. 
The shot column which has expanded in diameter 
and elongated, then reaches the recompression 
chamber of the pattern tube, where it is brought 
down to the desired diameter, lightly compacted, 
and fed to the choke in the forward end of the 
tube; as gas heat and friction heat do not occur at 
the same time in any magnitude in the tube, the 
shot are not deformed to any extent and in conse¬ 
quence they fly true with excellent velocities even 
in the outside pattern edge. 
5 
During the passage of the shot through the 
Compensator and pattern tube, the Compensator 
is dampening off still further, the natural periods 
of vibration of the barrel, and, by the time the 
shot column leaves the pattern tube muzzle, these 
vibrations have been so reduced that their effect 
will be negligible on misplacement of the pattern 
center, or rupture of the compacted shot column. 
This shot recompression and realignment ab¬ 
sorbs power, and ordinarily a reduced velocity 
would be expected in consequence, this however is 
not the case in practice, as the power for this 
recompression and realignment is obtained from 
that action of the gas in the Compensator. In 
addition this extra power is sufficient to permit 
the shortening of the barrel to 24 inches, thus 
permitting the overall length of the compensated 
gun to be 293^-30 inches. 
After deducting from the Compensator the 
weight of the section of barrel removed, there is 
practically no increase in muzzle weight and the 
balance is not at all disturbed, as will be observed 
from the applications. 
Compensator 
Shotgun Tubes 
packed in small 
handy wooden 
carrying case. 
Wrench and 
brush included 
THE USE OF 
PATTERN TUBES 
T N general use there are three principal classifica- 
* tions of shotgun chokes, which are at times 
differently named by different makers, however 
Full Choke, Modified Choke, and Improved 
Cylinder probably carry definite meanings to 
everyone. 
The scope of the Compensator pattern tubes is 
far greater than that covered by these standard 
chokes, however, three of the tubes approach 
closely the average patterns of these chokes, so for 
convenience and to parallel general experience, 
these names are assigned to them. 
SHOTGUN COMPENSATOR AND 
PATTERN CONTROL TUBES 
Long range No. 1 Tube 675 attached. Tube 680, long 
range No. 2. Tube 690, long range No. 3. Tube 705, full 
choke. Tube 725, modified choke. Tube 740, general purpose. 
Cleaning brush, wrench and No. 10D Lyman Ivory Bead 
Front Sight included with all sets of Compensator and Tubes. 
Two of these tubes are closer than full choke 
and are of special design, not approached in pat¬ 
terns or range, except possibly by a special magnum 
gun firing a special load. They are therefore taken 
out of the general classification of chokes, and 
classed separately as: 
LONG RANGE TUBES 
Long Range No. 1, 675 
Developed and intended solely for long range duck and 
goose shooting, ranges from 45 to 70 yards, with heavy 
loads of heavy shot. To obtain effective long range 
patterns, the pattern at 40 yards will be found to be 
altogether too close except for the most expert shot, and its 
density far greater than necessary or generally desirable. 
With first class loads, a 40 yard pattern of from 80% to 
90% may be expected. At 60 yards an average 55% 
pattern in the 30 inch circle up to 70% in the 40 inch circle, 
using the same loads No. 4 to No. 2 shot. At 70 yards 
45% patterns in the 30 inch circle have been consistently 
obtained, with good standard loads. 
Long Range No. 2, 680 
Intended as a more open pattern, to be used at ranges 40 to 
65 yards with the heavy loads. This tube has a flexible 
pattern feature; that is, it will open its pattern a little with 
lighter loads and close it with the heavy. It has, however, 
many of the carrying through characteristics of Long 
Range No. 1, giving excellent though more open patterns 
at long ranges. For the above tubes, the equivalent of 
3% 4 r - progressive powder with 134 oz. of shot No. 6 to 
No. 2 is considered a heavy load. 
STANDARD TUBES 
Tube 690. Long Range No. 3. 
Tube 705. Full Choke, corresponds in general pattern 
percentage to what is known as Full Choke. 
Tube 725. Modified Choke, corresponds in general pat¬ 
tern percentage to what is known as Modified Choke. 
Tube 740. General Purpose. As the name implies, it is 
adaptable for all around shooting up to 48 or 50 yards. 
Each of the Standard Tubes 690, 705, 725, 740 will close 
their patterns within their scope, as the charge, weight and 
size of shot are increased and open their patterns as the 
charge, weight and size of shot are decreased. 
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