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So my reasons for wanting a 2-10 are as follows.Why not a 1-6 or 1-8 out of curiosity?
I wouldn't be too concerned with the parallax at that range as you can easily put rounds on a silhouette target with a simple red dot at 500-600 meters.
I guess it really depends on the mission set behind the rifle. If it was me I'd run the 1-6 on the 16" AR and a Eotech or Aimpoint red dot on the 13.9" best of both worlds without going the SBR route.So my reasons for wanting a 2-10 are as follows.
1. I own two AR's a high quality Centurion 13.9" pin and weld, and a BCM 16" Midlength. Currently the 13.9" has a 1-6x24 Trijicon Credo which I love and I really like on that rifle. I'd like the 16" build to offer some additional capability and something different than my 13.9" build.
2. Having 1-6's on both feels kinda samey and redundant. Not that it's bad just if i'm gonna spend the money might as well have some variety and be able to do some different things.
3. 1-8's are cool but good ones are significantly more expensive and often require bigger mounts as they are usually 34mm scopes. I currently have a spare 30mm scope mount that I can use.
4. The Credo 2-10 has a cool Christmas tree style reticle with wind holds and I kinda want that on my 16" for ease of use at range.
Might not be relevant reasons for others but it's where my headspace is at right now. Subject to change.
Check out Clearidge scopes.Looking at 2-10 scopes for my 16" AR-15. Considering the 2-10x36 Trijicon Credo as it has a lot of features I like, the reticle, glass clarity, weight, and price. It does not have a parallax adjustment though. Is it needed for shots out to 600 meters.
For rapid engagement at various distances between 1 - 600 meters parallax adjustment won't come into play as you don't have time to adjust between targets. Now I would rather have it and not use it when situations dictated than not have it and wish I did. I think you are spot on going with a christmas tree reticle.Looking at 2-10 scopes for my 16" AR-15. Considering the 2-10x36 Trijicon Credo as it has a lot of features I like, the reticle, glass clarity, weight, and price. It does not have a parallax adjustment though. Is it needed for shots out to 600 meters.
Agreed. I have the same scope that I use for 2-300 yards. 2-10 is appropriate for PRI uppers/Mk.12 clones.Quite Happy with my Vortex PST II 2-10x32. I like shooting 100 - 300 yds and this works perfectly. It will go out further, but I have other options for that I prefer more. That said, while it's also good at 20 yds, this scope It's not a good choice for CQB situations. 1-6 would be better for that.
Please expand on this, I am curious to know what the additional 2-4 inches of barrel length provides outside of the added velocity.At 600 meters (656 yards) I'd rather spend the money on more barrel than another scope. An 18 or 20 inch 1/7 or 1/8 with a Wylde chamber will help your accuracy more than a couple more numbers of magnification.
As you've stated, velocity, plus a longer sight radius if one is forced to use irons.Please expand on this, I am curious to know what the additional 2-4 inches of barrel length provides outside of the added velocity.
A longer barrel doesn't increase accuracy unless you're relying on iron sights. A 16 inch 7.62 NATO barrel is just as accurate as an identical barrel that happens to be 20 inches long. Ballistically they'll be similar and velocity will be within a few hundred FPS. Once your DOPE is calculated, you can be a accurate with any barrel length (I'm talking "normal" length barrels that reliably impart bullet rotation).At 600 meters (656 yards) I'd rather spend the money on more barrel than another scope. An 18 or 20 inch 1/7 or 1/8 with a Wylde chamber will help your accuracy more than a couple more numbers of magnification.
True, but if you start with more velocity, you'll end with more velocity. Also, that extra little bit of oomph might be what it takes to make a handload perform properly. You can download a round to match velocities from a shorter barrel. It's tougher to push 'em faster from a short barrel.A longer barrel doesn't increase accuracy unless you're relying on iron sights. A 16 inch 7.62 NATO barrel is just as accurate as an identical barrel that happens to be 20 inches long. Ballistically they'll be similar and velocity will be within a few hundred FPS. Once your DOPE is calculated, you can be a accurate with any barrel length (I'm talking "normal" length barrels that reliably impart bullet rotation).