SIGHTLOK BLOG
DNT TheOne 7-35×56 Review — Would Make an Excellent Telescope
Should you buy a DNT TheOne 7-35×56? Probably not. At 35X the exit pupil is 1.6mm, narrower than the human pupil in daylight, and mirage degrades the image before the glass does. 7X is too much magnification for NRL22 and for close PRS targets. What’s left weighs nearly three pounds.
What is the Best Scope for Hunting? (And Why Almost Everyone Chooses Wrong)
What is the best scope for hunting? For nearly every big game hunter, a 1-6X or 1-8X LPVO — and if your first reaction is “I need more magnification,” this article is written for you. Independent data sets put the average big game shot at roughly 130-145 yards, nearly half are taken inside 100, most cartridges hit their ethical ceiling around 400, and every bit of extra magnification costs you field-of-view exactly when you need it most.
7 Reasons To Avoid the Vortex Impact 4000 (And What to Buy Instead)
Should you buy a Vortex Impact 4000? Probably not. A wide 45-degree slash-shaped beam that struggles around brush, a Bluetooth remote that drains batteries or makes you wait to reconnect, battery and display failures in cold weather, a calibration routine that defeats a lot of owners, a blindingly bright night display, and a proprietary ballistic solver instead of Applied Ballistics. Here’s the full breakdown and what to buy instead.
What is the best WMLRF?
Tango Fire 4000 or Vortex Impact 4000? We judged both on beam quality, real-world range, how you trigger a range, ballistic software, cold-weather reliability, support and cost — with pros and cons for each. Then there’s the third option most buyers never consider.
Tango Fire 4000 vs Sightlok RF-1
Considering the Tango Fire 4000? Don’t buy it. It has no built-in environmental sensors and it’s outranged by a $130 handheld Sig Sauer rangefinder. It also suffers the same wide, diagonal beam divergence problem as the Vortex Impact 4000, so you’ll have trouble ranging cleanly around brush, trees and other clutter near the target.
Sig Sauer Remotely Disabling BDX Rangefinders & Scopes – Our Argument with Nick Vitalbo, Applied Ballistics CEO
The team at Sightlok are big fans of the Sig Sauer BDX platform, and actively use it. Applied Ballistics, the company, is the main developer of Sig BDX platform. Needless to say Applied Ballistics is an awesome company that builds awesome software. But that doesn’t mean there’s no room for improvement. And one area that needs changing is their policy of disabling Sig BDX devices remotely if the Sig app detects the end user is not running the latest firmware. This is something we’ve been very vocal about both publicly and privately with Sig and Applied Ballistics management. Applied Ballistics…
Sightlok RF-1 Gen 3 Expected in February 2026
We now estimate that the Sightlok RF-1 Gen 3 model will be shipping in about February 2026. Sincere thanks to those of you who have been patiently awaiting this release. We’re doing our utmost to expedite production. What’s done: 1. Design of the RF-1 mount 2. Design of 2 different width picatinny to 17S male (QD clamp attachment) 3. Procurement of the necessary accessories and parts What’s left to do: 1. Finishing CAD work on a protective hood 2. Sending CAD files to the factory for the prototype production run 3. Testing the prototypes 4. Full production Design goals achieved:…
Sig WMLRF KILO WARP Rangefinder – Potentially Huge Implications
Sig Sauer’s much-anticipated weapon-mounted laser rangefinder (WMLRF), the KILO WARP, will be released soon. The KILO WARP uses the same engine and laser from the SIG KILO 10K and comes with the Applied Ballistics Elite (AB Elite) on board. Straight off the bat, one concern is the Bluetooth remote. Will there be delays introduced by the Bluetooth connection? Many prefer having a wired remote. Rumors suggest there will be 950nm and 1550nm versions, both available to civilians. The 1550nm version will cost around $10,000. The 950nm will be Bluetooth remote only while the 1550nm will also support wired remote, a…
Major Problems Discovered with Tango Fire4000 WMLRF
Should you buy a Tango Fire4000 WMLRF? Probably not. No built-in environmental sensors, outranged by a $130 handheld rangefinder, excessive beam divergence with a diagonal pattern that catches brush and terrain, a continuous ranging bug that silently stops updating your dope, an inclinometer bug that reads your phone’s angle instead of the rifle’s, and a manufacturer that doesn’t acknowledge or fix them.
Review of Sig KILO5K – Problems, Pros, and Cons
Problem #1: Sig Forcing Users to Update Firmware and Disabling BDX Scopes and Rangefinders if the User Declines, and these Firmware Updates Are Known to Brick Rangefinders. When you connect your BDX to the BDX app, Sig checks the version of your rangefinder firmware. If Sig has decided your firmware needs updating, the BDX app forces you to update your firmware and disables your BDX rangefinder (and occasionally your BDX scope as well) until you comply. What?! That’s right. The Sig BDX app remotely disables your rangefinder and your scope when it detects old firmware on your devices. Just plain…
