Review: The Career III 300                               Jim Chapman
The Career III 300 is a substantial gun, from the
solid action to the stacked air reservoirs
Close up of the heavy duty receiver, which is
high enough off the barrel to allow a 50 mm
scope while using low profile rings.
Loading pellets into the six round revolver type
A rotating cap covers the loading port on the
top reservoir
There was a steady drop in velocity over the
first ten shots, starting out at 1212 fps and
dropping to 1050. This gun yields very high
velocities and makes effective use of the air
charge. The target below was shot at 30 yards
offhand, as I wanted to see how it would
perform under hunting conditions
I recently obtained a Career III 300 in .22
caliber, and took it to the range for a day of
shooting. This is a substantial gun that weighs
a little over eight pounds, with a 22� barrel
and 41� overall length. The stock is a
nicely figured Asian hardwood, which has
machine checkering on the pistol grip and
forearm, and a rubber recoil pad. The comb
on this stock permitted a good line of sight
with the low profile scope rings I’d used
to mount a Leapers 3-9x 50 scope. The
height of the receiver allowed enough
clearance for this large aperture scope to sit in
these low profile rings without contacting the

The gun is driven by a precharged pneumatic
power plant, a stacked reservoir under the
barrel is charged using a fill probe (shipped
with the gun) that inserts into a port located at
the distal end of the top air reservoir. The
reservoir has a capacity of 300 cc and is filled
to a pressure of 3000 psi. There is a power
adjustment wheel situated just in front of the
trigger which can be used to optimize the gun
for various applications or a specific pellet.

The guns action is solid with a somewhat
blocky receiver design and a grooved
dovetail for mounting a scope. The gun does
come equipped with a decent ramp style iron
sight, but since I scope all of my hunting air
rifles, not a lot of time was spent shooting
with these. Cocking is achieved with a side
lever that takes very little effort to cycle.
When the lever is pulled back the cylinder
magazine can be pushed out to the left side
which allows six pellets to be inserted. With
the loaded magazine in place cycling the
cocking lever automatically indexes the
cylinder. The trigger is stated to be a multi-
stage design, but out of the box the trigger on
my gun was set up as a single stage that
broke at just over three pounds, which I liked
and saw no reason to fool with.

After shooting a few different pellets, I settled
in on the RWS Superdomes as a good all
around performer, and shot several groups
for accuracy and velocity off the bench. The
gun yielded fifty yard groups that averaged a
little under 7/8 of an inch at medium power.
But as my intention was to use this gun for
small game hunting, I decided to shoot a few
offhand groups at full power. This resulted in
an increased spread as one would expect, but
I was still able to keep the group inside the
kill zone of a rabbit. I have always been the
first to admit that I am a competent, but not a
great shot. As far as I'm concerned if a gun
allows me to cleanly and consistently kill a
rabbit at fifty yards, I’m getting all I need
out of a small game rifle!

On a single fill, I'd fire ten or fifteen shots
before topping off the gun. Again, since the
intention is to use this as a hunting arm, I
decided to look at the velocity of the first ten
shots. The spread averaged a first shot
velocity of 1225 fps and a tenth shot average
of 1050; corresponding to a first shot energy
of 40 fpe to a tenth shot energy of 30 fpe.
This rifle is a powerhouse! It is also one of the
loudest air rifles I’ve shot, sounding
almost as loud as a .22 subsonic rimfire round.

The next test was to get the rifle out in the
woods for a squirrel hunt. Shooting predator
polymer tipped pellets this time, the accuracy
was sufficient to allow me to bag a couple of
bushytails at about thirty and forty yards
respectively. I dialed down the power a bit,
as I found the Predators behaved a bit better
in this gun at lower velocities, but the terminal
performance was quite impressive. The
Career 300s rotary magazine had no trouble
digesting these pointed pellets.

As mentioned at the beginning of this review,
the gun is substantial. However it was
comfortable to carry and I did not feel at all
over-burdened carrying it around for a few
hours of still hunting.

So what are my final thoughts on this gun? I
like the overall design, finding that it is
comfortable to carry and comes naturally to
the shoulder. I was able to get a consistent
hold and the stock design facilitated good
sight alignment with a scope. The gun is very
powerful, and while not a tack driver offered
more than adequate accuracy as a fifty yard
small game hunting rifle. I like having six shots
on tap, and the rotary magazine fed a wide
range of pellets without malfunction. There
were two aspects that I was not crazy about;
I’ve never been a big fan of safety
mechanisms that are situated close to the
trigger. And secondly, this gun is a bit on the
loud side. However when all is considered, I
do think this is a very cool hunting rifle. It
would be an excellent entry level hunting PCP
that the shooter would not outgrow in a hurry.
I've been quite pleased by the performance of the Career rifles and carbines that I've shot, and
when I came across this low cost PCP rifle offered by Cobra Airguns, I really wanted to give it a
try. Following is a review based on experience off the bench and in the field.