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Gunwerks G7 BR2 Rangefinder Field Test
While I was out on the prairie testing the Gunwerks G7 BR2 Rangefinder, one of Colorado's wonderful afternoon thunderstorms rolled through. I thought I'd see how the G7 BR2 will range through heavy rain. Well, to my surprise, rain didn't affect the range finding capabilities much at all. I was still able to get readings of 1000 yards on antelope, fence posts and, bushes. While I was sitting in my truck, waiting out the rain, I thought Iíd try ranging through the glass. I was amazed that the rangefinder would range objects out to about 800 yards through the side windows and about 500 through the front windshield. Not too shabby considering none of the other rangefinders I had with me would even range a target at 500 yards in optimal conditions on the prairie.

Gunwerks G7 BR2 Rangefinder Field Test
The Gunwerks G7 BR2 Rangefinder


Next, I tested the Gunwerks G7 BR2 Rangefinder at 9000 feet of elevation in the Colorado Rockies. The G7 BR2 ranged everything I pointed it at out to about 2000 yards. I ranged trees, elk, deer, rocks, snow, and dirt. This thing just would not fail under 2000 yards. 2000 yards seemed to be the point where the G7 BR2 started to fail on certain objects, but letís face it, 2000 yards is too far for an ethical shot anyway. With most rangefinders you are lucky to get an 800 yard reading, let alone a 2000 yard reading.

Finally came the test that I couldn't wait to do, testing the Gunwerks G7 BR2's ballistic computer with 3 different rifles. The first rifle was a Browning A-bolt .300 win mag that was set up by Gunwerks with a Huskemaw optics scope. It that was fitted with a custom turret calibrated for 3500 feet elevation at 40 degrees Fahrenheit, and I was firing a Berger 195 gr. bullet at 2925 fps, and a true BC of .574 and a sight height of 1.7 in. The second rifle was a browning BAR in 7mm mag with a standard Nikon Monarch Mildot scope. The bullets were 160 gr Accubond with a BC of .520, a muzzle velocity of 3050 fps and a sight height of 1.5 in. The last rifle was a Browning a-bolt .338 win mag with a standard mildot Nikon Monarch scope. The bullets were 225 gr Nosler Partitions with a BC of 454 and a muzzle velocity of 2850 fps and a sight height of 1.5 in.

The first thing I did was to verify that all 3 rifles were sighted in at 200 yards. Next, I shot all 3 rifles through the chronograph and verified the velocities. Finally, I set up 3 ballistic profiles in the rangefinder, one in BDC mode and the other two in MOA mode. After that was done, I set up a 14 inch steel target at 604 yards on an 18% incline at 9200 ft elevation and 82 degrees Fahrenheit.

The first rifle I used was the .300 with the Huskemaw scope. After ranging the target at 604 yards and selecting the profile for that rifle, the Gunwerks G7 BR2 Rangefinder told me to set my 3500 ft BDC turret to 554 yards. With a 3-5 mph wind I adjusted 2 moa. In 5 shots, I had a nice 4 inch group. With the G7 BR2 Rangefinder's built in ballistic computer, I was able to use my 3500 ft. turret at 9000ft. It compensated almost 6000 ft of actual elevation and was dead nuts. Next, I tried the 7mm in MOA mode and adjusted 8 MOA for elevation and 2.25 MOA for wind and had a nice little 6 Ĺ inch group. Again the G7 BR2's computer compensated perfectly. I did the same with the .338 and adjusted 9.5 MOA for elevation and 3 MOA for wind and had a perfect 6 inch group. Now my long range rifle became more versatile, and two average hunting rifles had become legitimate long range rifles just by knowing the bulletís velocity and BC.

I figured that with results like this from the Gunwerks G7 BR2 Rangefinder on a steep angle and with such drastic elevation differences, why not see how the rifles and the G7 BR2 would perform at over half a mile. I hiked as far as I could safely go and set up 3 more 14 inch steel targets at 954 yards. After the long walk back I tried the .338 first. At 954 yards, 82 degrees, 9200 feet elevation and 8.1% angle I adjusted 22.75 MOA for elevation and 5 Ĺ MOA for wind. For the 7mm I adjusted 18.5 MOA for elevation and 4 MOA for wind, and the results were the same for both rifles. 10 inch groups rang out across the valley. With the .300 and the Huskemaw I adjusted my turret for 879 yards and 4 moa of wind and I had a nice little 8 inch group at 954 yards. Can you believe it? Again, not shabby. I did notice that if I needed to shoot farther than my turret is built for I would have to set up another ballistic profile in MOA mode for the same bullet. The computer would calculate the distance, and give adjustments in MOA. Then I counted clicks. But that didnít seem like too big of a deal to me since my turret can shoot to 975 yards with one revolution.

So overall the Gunwerks G7 BR2 Rangefinder works just like they said it would. With an MSRP of around $1,600, the ranging capabilities are second to none and far exceeded my expectations. For everything the G7 BR2 will do, it is very simple to use, light, compact and built to withstand the elements. The optics are top notch and very clear. The convenience and accuracy of the G7 BR2ís ballistic computer right there in the rangefinder makes getting on target quick and easy. A shooter using this rangefinder and a little practice can turn a good shooting rifle into a legitimate 600-700 yard gun. I think that with the G7 BR2 Rangefinder, Laser Technology Inc. and Gunwerks have pioneered the next evolution in laser rangefinders and long range shooting. Finally there's a reliable rangefinder that works in all field conditions and takes all the guesswork out of long range shooting for that shot of a lifetime.



Anthony Montoya resides in Denver, Colorado,where he is a union pipefitter welding on live gas pipe. He has been hunting in Colorado for 30 years and is a very avid sportsman. Elk hunting and long range shooting are his passions. He has managed to harvest and elk 19 out of 20 years. Recently married, he is introducing his new stepchildren to the addiction of long range hunting.



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