On the technical side...
1x...
Hello
Scott, as much as I hate to say this, in a best case scenario I would use neither of your scopes. Sure, anything can be made to work, but as
mikecatt13 or
YancyW already emphasized,
you need a true 1x (zero magnification) optic in order to be able to shoot with both eyes open, real fast, real close, and
calling4life is right on about so-called 1x optics that are in fact 1.25x or 1.3x etc.
Open sights...
Since you were considering purchasing a 1910 Rigby .470NE double rifle, I would assume that you would not have ruined its collector value by mounting a scope on it, right? That seems to indicate that you would have shot it with open sights, right? As
WAB,
DG Gunsmith, or
cal suggest,
nothing beats open sights for up-close & personal shooting, provided you can still see the front bead. If your eyes are going down, like mine, try a bigger front bead to see how it works. New England Custom Guns (NECG) sell some specifically for the CZ 550. These WILL make a big difference...
View attachment 381637
Optical sights...
If your eyes are so far gone that a big front bead won't do - welcome to my impending predicament! - then you have no other option than to use an optical sight. At this stage, you have two options: with or without variable magnification.
Non-magnification optics...
In the non-magnification optics field, there are also different options:
Tube red dots
The grand classic "tube red dot" technology, exemplified by Aimpoint, features a red dot (typically a LED) in a tube with zero magnification glass. As much as I hate to say, this technology is essentially obsolete. Basically, you get a scope for the use of a red dot. There are good reasons why the military moved away from these: too bulky, too heavy...
Reflex red dot
These are exemplified by the Trijicon RMR (Ruggedized Miniature Reflex), the Docter Sight, etc. They project a red dot (also produced by a LED) onto a heads-up display and fulfill the same function as the "tube red dot" but at a minuscule fraction of bulk and weight, without sacrificing anything in term of practical battery life and reliability.
Holographic red dot
This is the technology used by EoTech, and widely adopted by the US military. The big difference is that a holographic sight is usable even if the front glass is shattered, and even if most of the glass is covered in mud. A reflex sight will not.
Conversely, a holographic sight is bigger and more expensive. A reflex sight is small enough to mount on a pistol, a holographic sight is not. But it is perfectly proportioned for a close quarter battle (CQB) M4 carbine...
View attachment 381641
Variable magnification optics...
Variable magnification optics, exemplified by low power variable scopes, offer the advantage to be usable at close range both eyes open, IF they are truly 1x at the low end of magnification, and to be also used at longer range when using the magnification. A few considerations are worth pointing out:
- The true low end of the magnification range MUST be a true 1x (i.e. zero magnification).
- One would be foolish nowadays to select a scope that does not integrate a illuminated red dot. Right there, this gives you in essence 1) a tube red dot, plus 2) a scope.
- To keep the scope mountable on magnum length actions, and reasonably light, these scopes typically do not have a front bell, but just a straight tube. It saves bulk and weight, but it also means that the front objective is very small, typically 24 mm.
- Small diameter objectives mean that their light gathering ability is limited, therefore the usefulness of their magnification will drop dramatically at dusk and dawn. In order to retain a 7 mm light beam reaching the eye pupil in crepuscular light, no more than 4x magnification should be used (4x 7mm light beam = 28 mm objective). Sure, in broad daylight when the human pupil shrinks to 3 mm, a lot more magnification can be used even with a small objective. This explains why Swarovski makes a Z6 1-6x24 and even a Z8 1-8x24.
- There is no "free lunch" though, a 1-6x24 or 1-8x24 is also a lot bigger and a lot heavier than a 1-4x24 (and also a lot more expensive). Choose wisely...
So.......... these are your objective options...
As to personal advices, we will each have our own, and they are worth what you pay for them, which is exactly nothing
, but I will offer mine as well because you are asking for input
- If your eyes are good enough, and since you have great open sights on the CZ 550 (possibly with the addition of a NECG wide and/or fiber optic bead), this is probably your most reliable option.
- If you need optical sights, and you favor compactness and light weight, a reflex sight mounted on the front bridge is likely your best option. The Trijicon RMR and Docter are probably the two most proven. I have a Docter III on my Mauser 66 .458 Lott, but nowadays I favor the Leica ASPH for the reason that you do not need to dismount the sight from its carrier plate to change the battery. A tube red dot (Aimpoint) or holographic sight (EoTech) are much bigger/heavier for no appreciable added feature on a DG hunting rifle.
- If you want dual purpose function, a variable scope WITH red dot is the way to go. I personally have no use whatsoever for more than 1-4x because I cannot think of any scenario where I would need 6x or 8x on a DG rifle, but to each our own. You can spend a lot of money on glass, but I find the economical Zeiss Conquest V4 1-4x24 ($500) to be near ideally proportioned. I personally use a Leica Visus 1-4x24 on my CZ 550 .416 Rigby because it has a longer eye relief, but this particular model is not manufactured anymore...
Just my $0.02 and I hope this helps
Scott