You'll definitely want a large air reservoir like this
Omega Air Cylinders 75 cubic-foot, 4,500 psi tank
to keep the TC-45 happy.
That’s not a sound generally associated with airguns, now is it? However, it was precisely
that noise that had the whole rifle line laughing hysterically at my local range recently. I
was there lobbing large lead slugs with the
Gamo TC-45 big bore air rifle. Initially, the space-age looks and shockingly quiet operation
(compared to the fire and brimstone boomers) commanded full attention from the range crowd. What
made them giggle was the sound of 411-grain lead slugs (would those be classified as bricks?)
hitting the 100-yard berm. Thud. Imagine the sound of whacking a sofa cushion with a shoe; then
you’ve about got it.
What’s the Gamo TC-45?
Two of the things I liked best about this rifle are the sleek appearance and easy handling.
The first thing you’ll notice about the TC-45 is its long and slender contemporary appearance.
As the air reservoir doubles as a buttstock, there’s no bulk up front in the handguard
area. In fact, the spiral-fluted guard is a bit under 1.6 inches in diameter. Forward of that
is a segment of exposed barrel capped with a permanently attached sound moderator.
The cocking lever doubles as a trigger guard, thereby keeping the overall form factor of the
TC-45 slender and sleek.
As a single-shot design, the receiver is also minimalist. Even the cocking lever doubles as a trigger
guard, so there are no other protrusions except the Foster fill port on the left and pressure
gauge on the right, just behind the receiver.
The trigger is two-stage and adjustable to preference. I didn’t mess with it, but if you
want to, you can. Above the receiver is a 9.5-inch rail segment, placed high enough to give you
proper eye positioning when using the air cylinder buttstock as a cheek rest. I mounted a Hawke
Optics scope using low rings, and the height was perfect relative to my natural eye position.
The TC-45 uses a standard Modern Sporting Rifle grip so you can easily swap that out with your
personal favorite grip type.
The 480cc carbon fiber air cylinder housed under the buttstock comb can handle up to 250 bar. That’s
a hair over 3,600 pounds per square inch. As this rifle is designed to shoot a wide variety of
.45 caliber projectiles (one of the reasons for its single-shot design), it likes to have lots
of air at its disposal. Depending on shape and weight of your projectiles, you can get maybe
five full-power shots per fill and stay consistent enough with the resulting velocity to keep
on target. Bottom line: you’ll want either a compressor or reasonable capacity air cylinder
to keep this beast topped off. You can pump it up by hand if you wish but you're going to
burn a few billion calories. In the name of science and honest reporting, I did just that but
lost 17 pounds in the process.
The TC-45 uses a Foster connection for filling (good!). On the opposite side is a manometer to
monitor tank status while filling and shooting