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Gunwerks G7 BR2 Rangefinder Review

 
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  #113  
Old 11-20-2012, 06:38 PM
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Location: New Castle colorado
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Re: Gunwerks G7 BR2 Rangefinder Review

I was down in Utah shooting prairie dogs a couple weeks ago. This was an interesting test of the G7, and it did not fare well this time.
I have used it extensively ranging marmots out to 1400 yards, and it worked quite well, but this was all in steep mountains above timberline where the hillsides formed pretty vertical surfaces to range against.
Out in the flats of the high desert, the unit had a hard time getting accurate ranges at longish distances, 600 yards and beyond, unless the target was on even a slight hill. I even had a hard time ranging antelope around 950 yards, but it seems part of the difficulty was lighting.
All in all I am still very impressed with this unit, but I will have to gain more experience with it in this setting to figure out how to get accurate ranges every time.
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  #114  
Old 11-20-2012, 08:08 PM
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Re: Gunwerks G7 BR2 Rangefinder Review

Quote:
Originally Posted by COBrad View Post
I was down in Utah shooting prairie dogs a couple weeks ago. This was an interesting test of the G7, and it did not fare well this time.
I have used it extensively ranging marmots out to 1400 yards, and it worked quite well, but this was all in steep mountains above timberline where the hillsides formed pretty vertical surfaces to range against.
Out in the flats of the high desert, the unit had a hard time getting accurate ranges at longish distances, 600 yards and beyond, unless the target was on even a slight hill. I even had a hard time ranging antelope around 950 yards, but it seems part of the difficulty was lighting.
All in all I am still very impressed with this unit, but I will have to gain more experience with it in this setting to figure out how to get accurate ranges every time.
I had similiar difficulty until I figured out which range mode to use for each circumstance. It's very fast and accurate ith some practice and can get a range when other RF's cannot.
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  #115  
Old 11-21-2012, 08:12 PM
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Join Date: Nov 2009
Location: Coram, Mt
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Re: Gunwerks G7 BR2 Rangefinder Review

The great thing about this forum is that you can glean so much from other shooters. Here is something to think about. I had access to a military rangefinder for a couple of years. It was not eyesafe but it would range nearly anything. When you hit the button it was like the hammer of God. It gave the range immediately. However, it was so expensive that I hated to even handle it. One thing I learned was that the aiming square or circle typically is the width of the projected beam at the target location. I also own a Leica 1200 and a Swarovski Guide. I strongly suspect the aiming square or circle is the beam width with those units as well. However, I don't know that for sure.
I have heard that the eyesafe feature has more to do with the wave length of the pulse and not anything to do with the strength of the laser itself. I read that somewhat on a newer rangefinder for the military. Therefore, I really don't understand why the G7 BR2 can't range further. That said the G7 sounds like a good unit because it gives the firing solution right away. Time is of the essence when you have to make a shot.
I would also like to mention that the Lieca and the Swaro will fill many hunters needs. For example, the Lieca 1200 ranged a coyote at 900 yards+ and under very good conditions I have ranged 1250+ many times the Swaro. The truth of the matter is that a 800 yard shot is still a heck of a shot. Having the latest and greatest is not absolutely necessary to have quality long range hunts. New products often have new unknown bugs. Often the cost of being on the cutting edge is the price of being an unpaid bug finder.I personally feel that a rangefinder will reliably range about half of it rated range. That means the Lieca 1200 is typically a 600 yard product in the field under nearly all conditions. If a buyer applies the "half rule" on rangefinders he/she will have few surprises.
The last suggestion is that rangefinders can do no better than the user holds them. With using a tripod the user can typically extend their ranging ability by about 20% to 30%. A rangefinder is just like a rifle. If you don't hold dead on you will "miss." The number the user gets may not be the target. Hopefully this will add to the group thoughts.
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  #116  
Old 11-24-2012, 07:37 PM
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Location: New Castle colorado
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Re: Gunwerks G7 BR2 Rangefinder Review

Jerry C, IME I find your comments to be accurate, though I have not had opportunity to use a military grade LRF.
The primary reason I chose the G7 over the Vectronix PLRF05 was the ballistic software and fast solutions built into the G7. I have not been disappointed. Even shooting the lowly marmots were frequently gone by time I had ranged, consulted my drop chart, calculated come-ups, and dialed them in.
I am heading down into Utah again tomorrow and will do some more testing to learn how to get accurate ranges from the unit in that topography.
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  #117  
Old 11-24-2012, 08:19 PM
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Location: Coram, Mt
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Re: Gunwerks G7 BR2 Rangefinder Review

CB
You are so right. Getting the firing solution is where it is at. Getting the right dope fast enough can make or break your season! I will be watching to hear about your experience with the G7. Best of luck!
Sincerely,
Jerry C
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  #118  
Old 11-27-2012, 12:51 AM
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Location: New Castle colorado
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Re: Gunwerks G7 BR2 Rangefinder Review

I was able to test the unit a little more yesterday on a prairie dog on the flat high desert above Moab Utah. The only one I shot at was somewhere between 725 and 775 yards. I could not be sure. I ranged with the tiny target high in the aiming square, as well as low. I took multiple ranges, and it appeared to be 725, which called for +13.5 MOA. I fired and found I was a couple MOA low. After several shots I ended up at +16 MOA, which my data sheet says should be 775 yards.
I walked out to the mound he had been sitting on, and ranged back to my car. That range was an even 750 yards.
I am going to do more field testing of the rifle on targets before I test the rangefinder any further in that setting. I know from the other two rifles I have entered into the rangefinder that I had to do some very careful testing before I got it dialed in.
I am happy to say that, for those two rifles, it is dialed. I was ranging and shooting at marmots out to 1380 yards earlier this fall with my LR varmint rifle, and shooting my light weight elk rifle out at 842 yards yesterday. In both cases ranges and corrections were right on.
Once I am certain I have the rangefinder and rifle in sync, I'll try again.
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  #119  
Old 11-27-2012, 01:42 AM
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Join Date: Nov 2009
Location: Coram, Mt
Posts: 47
Re: Gunwerks G7 BR2 Rangefinder Review

COBrad

Please let us know your continuing results. I have found that praire dogs and antelope are the very hardest test for a rangefinder. Keep us abreast as many of us are looking for field information. That of course applies to anyone who is using the G7.

Thanks again,
Jerry C
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