Vortex Diamondback Tactical 4-16x44 Review

In a second focal plane scope, the reticle stays a constant size on your eye as you zoom, which means its holdover marks are only accurate at one specific magnification, usually the top of the range. In a first focal plane scope like this one, the reticle grows and shrinks with the image, so a 2 mil hold is exactly 2 mils of correction whether you are at 4x or 16x. That is the entire argument for the category, and it is why exposed turrets and a mil or MOA reticle almost always ship together on an FFP scope.

This scope moves up to a 30mm tube for more internal elevation travel than a 1 inch tube provides, which changes the ring height math from the smaller hunting scopes above. See the worked figures for a 44mm objective on a 30mm tube rather than assuming the same ring height that worked on a 1 inch, 40mm hunting scope will clear this one.

The recurring positive theme is exactly what the price suggests should not be possible: owners consistently describe turrets that track and return to zero reliably across a full magnification range, which is the one thing a budget FFP scope most commonly fails at. The extra-low dispersion glass Vortex publishes for this model also comes up repeatedly as a real, visible step over the glass in this site's 3-9x40 hunting tier.

The recurring caution is the reticle itself at the bottom of the zoom range: because an FFP reticle shrinks along with the image at low magnification, the EBR-2C's fine subtension marks can be genuinely hard to pick out at 4x in dim cover, which is a real trade rather than a manufacturing flaw.

Something has to give at this price against a $500 or $600 FFP scope, and here it is glass refinement rather than the core mechanism: the image is noticeably less crisp at the edges of the field than the pricier Athlon Midas TAC or the Vortex Viper PST Gen II, and the reticle's fine subtension lines are the hardest to read of any scope in this size class at minimum zoom. Neither issue affects whether the turrets track correctly, which is the part that actually matters for a first precision rifle.

This scope also does not publish a zero stop, unlike the pricier Arken and Athlon FFP scopes below. That means returning to a hunting zero after dialing elevation is a matter of counting clicks back rather than spinning the turret to a hard mechanical stop, which is a real, if minor, added step in the field.

If you want more top-end reach in the same tier, the Athlon Argos BTR GEN3 6-24x50 at $379.99 steps up to 24x with an illuminated reticle and a zero stop, reviewed separately. If you want illumination and a zero stop at this exact magnification range instead, the Arken SH4 GEN2 4-16x50 at $299.99 adds both on a larger 34mm tube for a similar price.