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Gunwerks G7 BR2 Rangefinder Review

 
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  #148  
Old 03-26-2013, 11:24 AM
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Re: Gunwerks G7 BR2 Rangefinder Review

I use a anemometer with the G7 for accurate wind corrections. I went to the G7 because it is much faster than entering all the atmospheric data.and.range into another device and less gadgets to mess with. I have carefully refined my data inputs until i have been able to get corrections sufficient to make first shot kills on marmots past 1100 yards.
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  #149  
Old 03-26-2013, 11:45 AM
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Re: Gunwerks G7 BR2 Rangefinder Review

Quote:
Originally Posted by COBrad View Post
I use a anemometer with the G7 for accurate wind corrections. I went to the G7 because it is much faster than entering all the atmospheric data.and.range into another device and less gadgets to mess with. I have carefully refined my data inputs until i have been able to get corrections sufficient to make first shot kills on marmots past 1100 yards.

Thats a Task in it's self, I just wish that the makers of these things would stop and take a look at what we do, and then give us the things we need, Why the heck would they release some thing that would work for all shooters, seems like range finders are the only weak link in the chain, weather you buy Bullets, Scopes, Rifles etc there is something for everybody but range finders you just gotta throw ya name in a hat and see what comes out that why I bought my one because Im not gonna buy an Extra long range Range finder till they get it right and as Some very well Versed people have already said most hunting shots range from75yds out to about 3/450 yds,

john
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  #150  
Old 03-26-2013, 12:15 PM
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Re: Gunwerks G7 BR2 Rangefinder Review

Almost every big game animal I've shot over the past 39 years has been within 300 yards, and most less than 200. I currently use a .270 WSM for big game and have it set up so a shot on a deer size animal out to 320 yards is a dead on hold for center of chest.
I use the G7 far, far more for prairie dogs and marmots. My passion has become long range marmot hunting and I look forward more to that than elk hunting anymore. For this use the G7 is working quite nicely. I had looked hard at the Vectronix Terrapin, but by time I get done using 3 gadgets and inputting all the necessary information, the marmot is frequently gone.
So far the G7 unit is working great. My goal this year is to break the 3/4 mile mark - 1320 yards. Based on my experiences last year, I expect dead accurate corrections from the G7.
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  #151  
Old 03-26-2013, 12:27 PM
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Re: Gunwerks G7 BR2 Rangefinder Review

Quote:
Originally Posted by COBrad View Post
Almost every big game animal I've shot over the past 39 years has been within 300 yards, and most less than 200. I currently use a .270 WSM for big game and have it set up so a shot on a deer size animal out to 320 yards is a dead on hold for center of chest.
I use the G7 far, far more for prairie dogs and marmots. My passion has become long range marmot hunting and I look forward more to that than elk hunting anymore. For this use the G7 is working quite nicely. I had looked hard at the Vectronix Terrapin, but by time I get done using 3 gadgets and inputting all the necessary information, the marmot is frequently gone.
So far the G7 unit is working great. My goal this year is to break the 3/4 mile mark - 1320 yards. Based on my experiences last year, I expect dead accurate corrections from the G7.
That an impressive goal and I hope you get there, You know if they did put the things on the G7 that people have stated it would be at the top of the tree for many years and you would have to spend about $6000 to find something better,

John
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  #152  
Old 03-26-2013, 12:45 PM
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Re: Gunwerks G7 BR2 Rangefinder Review

It seems the G7 would need just a small bit of tweaking to make it work for an even larger audience, like MIL compatibility.
As to the 1320 yards, I started out last year with a custom 7 mag, purpose built by Quarter Minute Magnums as a long range marmot rifle. The goal was 800 yards. I made 1156 the first day out with the rifle. Ya, I was stoked!
My last day out last year I had one at 1380, but he just would not sit still long enough for me to squeeze off a shot. He kept running between his den and somewhere behind the boulder he was denned under. When he finally disappeared for good, I took a shot at a rock next to the den that had appeared to be similar in diameter to his chest. I hit the left edge of the rock. I am hopeful to make that shot this year.
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  #153  
Old 03-26-2013, 01:47 PM
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Re: Gunwerks G7 BR2 Rangefinder Review

Quote:
Originally Posted by COBrad View Post
My last day out last year I had one at 1380, but he just would not sit still long enough for me to squeeze off a shot.
Keep after em Brad, you will get one. Here is a vid of a gopher (size of a pop can) we shot back in 08. Note the crosswind blowing the steel target and that the gopher dropped down as the bullet was in flight.

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  #154  
Old 03-27-2013, 06:51 AM
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Re: Gunwerks G7 BR2 Rangefinder Review

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Originally Posted by Broz View Post
Greyfox, I agree with most of what you posted but think the part of "all but a small percentage of the practical ranging situations" is a bit optimistic. I see this all the time. I feel there are many errors on shots below 700 from large beams that go somewhat undetected because the mis-range still resulted in a hit on the animal. Example, a shot at 600 yards needs 9.5 moa. if the reported range was 550 the dial up would be 8.5. So the bullet would go 1 moa or 6" low and still result in a hit. Just not as well placed. This is especially so with shooters using rocks to test drops and equipment. A 1 moa miss is close enough to get a smile many times on a 4 moa rock and they may never know their RF gave them an incorrect reading.

If I remember correctly you too have seen some of this now that you have the terrapin to show what a true reading is. You and I are lucky to have the Terrapin and the PLRF10 to use as a checking device. At least it has been an eye opener for me. I know when I head out to range antelope in sage brush the errors of the larger beam units are not a small percentage. That does not mean they will always result in a miss, but
we all know an accurate reading in distance is the most important element of any long range shot if we want to place it well.

My point is if more shooters had the chance to see what you and I do with a checker there to point out mis-ranges, they too would see. But since this is such an expensive thing to do it is not practical.

So, I believe this is why so many think just because the unit they have in there hand
gives them a number to a long distance it is great. The fact is they would be better off in the long run if it didn't give a reading on far target.

Please don't take what I am saying as picking on the G7. I have already stated it is a great unit if you want a RF that gives out corrections. I am referring to any of the many large beamed units. I just feel users need to know the weaknesses of large beams and watch for it to be as successful as possible.

Jeff
jeff,
I think we are on total agreement. All the G7's calculating capability would be useless if the range was incorrect. Having had the opportunity to work with both the G7 and the Terrapin for several months has been an eye opener. When I first got my G7 I
found that when used in normal mode that the difficult ranging situations that you describe, particularly since I'm also an antelope hunter, readings were difficult or suspect. The same was true with my Leicas. I described in earlier posts that when I used the G7's near/far ranging modes, with practice, the unit would filter interferences like interfering sage or hills and produce a reading that "looked to be right". I had made successful kills using this capability. The problem with using this technique, as you have stated, with the G7 was that there was no way to confirm that the readings that I got were in fact accurate. Now that I have had an extended period to use the Terrapin's narrow beam to evaluate and confirm these readings, I have found that this approach does give readings that are accurate when confirmed with the Terrapin. Using the near/far of the G7 to get these reading in these situations does take some practice handling the controls, but once mastered can be done quickly. For me, I think it's worth it to take advantage of the ballistic calculater which works exceptionally well. The perfect product would be to have a Terrapin with the G7's calculator. IMO.
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