Martin Onza 3 Bow Review

Martin Onza 3 Bow Review
Martin's Onza 3 sports an eye-catching bridged riser, distinctive string damper, clever cable containment system and Vibration Escape Modules that look like the intakes on a jet engine. Nitro Cams power the Onza 3 to good speeds, and the Roto Cup effectively serves as the critical interface between limbs and riser.

Martin Archery is celebrating its 60th anniversary this year. That is a tremendous accomplishment considering the number of bow makers that have come and gone in that time. The company has has been a very positive influence on bowhunting through its innnovative designs (more than 25 patents) and support of the archery community.


For 2011, Martin brings back a bridged riser design from the early 80s on the Onza 3. Also featured is the Torque Reducing Cable Guard (TRG), Quick-Lock Stabilizer Mount, String Oscillation Suppressor (SOS), HammerHead string and cables, VEM Vibration Vortex and Nitro Cams.



Distinctive Features

With a bridged format, Martin is going back to a design it brought out in the early 80s. Bridging creates strength and stiffness through a wider and more stable footprint. A component I particularly like on the Onza riser is the Quick-Lock Stabilizer Mount -- both front and back. Your tightly secured stabilizer can be removed from the bow with a few quick turns of the threads, which loosens the entire fixture and allows it to slide out of the open receiver.


Two of these technologies share the same carbon-rod mounting system -- the SOS and TRG. Martin situates the SOS so it contacts the string near its midpoint using a soft rubber module that is suspended by two posts in a U-shaped fixture. With this setup, the module is permitted to move within the fixture as it reacts to the string. After absorbing the first blow, the SOS module flows with increasing resistance to quickly reduce string oscillation. According to Martin, having the SOS near the midpoint of the string reduces vibration up to five times faster than systems that catch the string low on the bow.

Martin's TRG cable-containment system has two angled slots that allow the cables to move freely toward the centerline of the bow as it is drawn and then back out again  upon release. This movement eases tension, reduces torque and minimizes cam lean.


Seated within each end of the riser, Martin's Vibration Escape Modules (VEM.) consist of an aluminum, bullet-shaped component suspended in the middle of a soft polymer body. During the shot, the solid bullet moves within the soft module counteracting vibration. VEM material is also used for Martin's Hunter Arrow Shelf, which prevents noise if your arrow falls off the rest.

Combo Cams

The Onza 3's Nitro Cams do an excellent job of combining speed, adjustability and smooth draw cycle. A clearly marked rotating module is easily adjusted to draw lengths from 27'‰1⁄2-30'‰1⁄2 inches, in half-inch increments. Fine-tuning is available through an adjustable draw stop on the bottom cam, which customizes the feel of the back wall/valley and slightly changes draw length. Martin advertises 80 percent letoff, with downward adjustability.

Functionally, the cables in this system are tied directly to the opposite cam to create a self-correcting mechanism. Structurally, Nitro Cams ride on stainless steel axles and sealed ball bearings and are CNC machined with three tracks to handle the cables. Cams are black anodized.

Precision and Power

The Onza 3 has a set of solid, 13-inch PowerTough limbs made with Gordon glass. Limbs are offered in 50-, 60- and 70-pound peak -- each with 15 pounds of downward adjustment. Martin designed the 2011 limbs to reach beyond parallel at full draw. A proprietary coating is added to the limbs for increased toughness and durability.

The critical limb-to-riser interface is handled with the company's Roto Cup limb alignment system, which uses a minimal amount of material to gain a maximum return in terms of control. For 2011, Martin tightened the Roto Cup tolerances for even more precision.

Impressions

In addition to a bull's-eye killing aim and rock-solid balance, the Onza 3 has a draw cycle to be proud of. In testing, a quality stabilizer and set of simple string silencers placed near the cams effectively tamed shot vibration and noise. This bow will get the job done in the field.

Recommended for You

Bow Accessories

6 Ways to Make Your Bow Quieter

Darron McDougal

Is your bow setup a bit noisy? Try these tips to silence it.

Big Game

Elk Calling With the Experts

Tracy Breen

Learn how to lure wary bulls into bow range.

How-To

BOWHUNTING's Guide to Tree Saddle Hunting

Greg Staggs

Embrace the lightweight comfort and versatility of tree saddles.

See More Recommendations

Popular Videos

Springtime Turkey Hunt

Kevin Steele and the boys are bowhunting turkeys with the help of some well-placed decoys.

Crossbow Boar Hunting

Craig Boddington is armed with his crossbow and puts the stalk on a wild boar.

See more Popular Videos

Trending Stories

How-To

Summer Scouting Spectacular

Bill Winke - July 17, 2019

Mid-Summer Is Prime Time to Watch Large-Racked Bucks — and Stoke Fall Enthusiasm!

Bows

2019 Bowtech Launch: Realm SR6 & SS Review

Jon E. Silks - November 07, 2018

We got our hands on the brand new 2019 bows from Bowtech. See how the Realm SR6 and the Realm...

ATA Show

New Mechanical Broadheads for 2019

Brian Strickland - January 10, 2019

Check out our top picks for the best new mechanical broadheads to debut at the 2019 ATA Show!

See More Stories

More Bows

Bows

Bow Review: Bear Approach HC

Jon E. Silks - March 08, 2018

Bear Archery obviously gets its name from the late, great Fred Bear — that is a ton of

Bows

Bow Review: Mission Hype DTX

Jon E. Silks - April 27, 2018

Mission is all about creating bows that employ get-it-done technology and then backing that up...

Bows

Bow Review: Hoyt Nitrux

Jon E. Silks - September 24, 2018

Hoyt's new-for-2018 Nitrux features their hybrid Cam & system and Quadflex split limbs to...

See More Bows

GET THE MAGAZINE Subscribe & Save

Temporary Price Reduction

SUBSCRIBE NOW

Give a Gift   |   Subscriber Services

PREVIEW THIS MONTH'S ISSUE

GET THE NEWSLETTER Join the List and Never Miss a Thing.

×