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All things 300 AAC BLACKOUT
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PostPosted: Mon Feb 11, 2019 9:13 pm 
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Silent Operator

Joined: Sun Dec 15, 2013 6:57 pm
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I have a 16" upper with a sightmark photon 4.6 mounted on it that I've used looking around for hogs and coyotes at night. I know it works ok during the day, as I sighted it in that way, but I would prefer to have a larger zoom if I want to go out during the day and not take my remy. My eyes are going downhill a bit and I don't want to upset the landowner by taking an expensive animal.

Do the quick detach scope mounts hold zero as well as advertised? Or would I be better off building a new upper and swapping the lower between them? I figure the price of 2 reliable mounts wouldn't be much different than the price of a new upper.


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PostPosted: Mon Feb 11, 2019 9:26 pm 
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Silent But Deadly
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When doing the calculations, keep in mind that a new upper usually leads to a new lower. :mrgreen:

Sorry, no experience with the quick detach mounts.


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PostPosted: Mon Feb 11, 2019 9:32 pm 
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Silent Operator

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Lol, I prefer to think that a lower would be a "future" purchase, as an upgrade, and not part of the initial investment :lol: it's all part of tricking the brain into agreeing.


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PostPosted: Tue Feb 12, 2019 11:45 am 
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Personally I would go with the second upper . QD mounts may or may not return to zero ( or close to it ) but a well mounted scope that isn't removed is pretty much on with the trouble of popping two pins and swapping the lower .


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PostPosted: Tue Feb 12, 2019 2:16 pm 
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Silent But Deadly

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I would also go with the second upper and dedicated optic. I have no experience with detachable mounts, but even if they do as advertised, the zero is going to be different on different guns so you'll have to go through that again.
Rebel turned me on to the Sightron S-tac scopes. a 4-20X50 is less than $400 @ Optics Planet and they are very nice optics for the $$$. I must like them, I have them on four rifles.

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PostPosted: Tue Feb 12, 2019 2:18 pm 
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Silent But Deadly

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bangbangping wrote:
When doing the calculations, keep in mind that a new upper usually leads to a new lower. :mrgreen:



Tell me. That's how I ended up with 3 ARs.

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PostPosted: Tue Feb 12, 2019 3:37 pm 
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Silent Operator

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rlandry6 wrote:
I would also go with the second upper and dedicated optic. I have no experience with detachable mounts, but even if they do as advertised, the zero is going to be different on different guns so you'll have to go through that again.
Rebel turned me on to the Sightron S-tac scopes. a 4-20X50 is less than $400 @ Optics Planet and they are very nice optics for the $$$. I must like them, I have them on four rifles.


The more I think on it, I am leaning more towards the second upper.

Never looked at Sightron before I've been wanting to try some of the Primary Arms offerings since they are about 30 minutes from me. After a failed hunting trip with a Millet not holding zero (the deer didn't even run I missed so bad) I've been using Vortex Vipers and scared to go back.


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PostPosted: Tue Feb 12, 2019 3:47 pm 
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Silent But Deadly

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Aggie wrote:
rlandry6 wrote:
I would also go with the second upper and dedicated optic. I have no experience with detachable mounts, but even if they do as advertised, the zero is going to be different on different guns so you'll have to go through that again.
Rebel turned me on to the Sightron S-tac scopes. a 4-20X50 is less than $400 @ Optics Planet and they are very nice optics for the $$$. I must like them, I have them on four rifles.


The more I think on it, I am leaning more towards the second upper.

Never looked at Sightron before I've been wanting to try some of the Primary Arms offerings since they are about 30 minutes from me. After a failed hunting trip with a Millet not holding zero (the deer didn't even run I missed so bad) I've been using Vortex Vipers and scared to go back.


I also just ordered a Vortex Viper6-24X50. I've read so many reviews on them, I just had to try one. It's going on a Remington 700, either .308 or 22-250, haven't decided yet. If I don't like it, it will go on fleabay and I'll get another Sightron. At this time, my stable consists of 5 Sightrons, a Viper Red Dot & Magnifier on an AR, and the Viper on the way.

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PostPosted: Sat Feb 16, 2019 11:42 pm 
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Silent Operator

Joined: Wed Nov 19, 2014 9:42 pm
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I subscribe to Recoil Magazine and here is a reason why - a great article on QD mounts: https://www.recoilweb.com/guide-to-quick-detach-scope-mounts-57239.html Fortunately, non-subscribers can see this whole article.

Burris PEPR was the worst of the bunch at 0.223 MOA Zero Shift while the BOBRO was 0.016 MOA Zero Shift and several performed in between. I think you're pretty safe, even with the Burris unless you really start to push out your distance.


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PostPosted: Sun Feb 17, 2019 11:07 am 
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Silent Operator

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Thanks for that article Bravo, that's a lot of testing that they went through for those and a really good write up. Now that does make my choice more difficult, I started down the new upper road a little this weekend and bought a blem nickel teflon from right to bear, but haven't done any serious damage to my credit card yet. More brain storming is required.

I think you're right that I'm pretty safe going the QD route.


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