CZ 457 MTR Scope rings

[vfr800ch]

so, I finally decided to get a CZ 457 MTR (it's lovely as is (love the wood stock) and if necessary can put it in a MDT XRS Chassis at some point in the future..) and plan to add an Area 419 30 MOA rail and a Vortex Strike Eagle 5-25x56 scope and some Vortex Pro 34mm scope rings (due to availability issues) but then the question comes about which height rings: low (0.95"/24.13 mm) or medium (1.1"/27.94mm).

I assumed this was going to be pretty easy to find, as I'm pretty sure i'm not the first person to use this combination but somehow I can't seem to find the answer.

I would really like to have a decent cheek weld without adding a cheek riser, but is this an unrealistic expectation? (hence the idea to use low rings)

I'd also still like to add the sun shade, but is this even possible with low rings and a 30 MOA rail..

I will only be using this for range use, I have access to 100m and possibly up to 300m

Thanks for any advice!

 

[125 Straight]

This is the method I use to determine ring height. Make sure you have the sun shade on when you do this.

 

[Emerson0311]

To shoot Rimfire PRS go as high as possible. It helps with your shooting position. All significant chassis have adjustable cheek rests, although current wisdom recommends chin weld vs cheek weld anyway. If it’s just for the bench disregard.

 

[beetroot]

Low will work and provide a better cheek weld.
However the general wisdom is to go higher.

I recently changed from approx 1.2" to 1.5" tall rings and found it to be a much more comfortable shooting experience.
It should be easy enough to source some sort of cheek riser if you go for the higher rings.

Also before buying a chassis start another thread and get feedback on the different options, and include (swiss?)
pricing so people can get the full picture.

 

[Fasteddie01]

I have the VMTR in wood stock with the 30moa 419-rail and the scope (Athlon Argos 8-34x 56 FFP) I have only had 44-MOA Total adj, so I was unable to zero at 50. I had to get Burris XTR rings to 'take-off' 10 MOA to get that 'close' zero. Cheaper than changing scopes but it left me pretty high for a chin-weld. The alternative is removing the rail and using regular rings - maybe someday? I've made a cheek-rest with a foam mouse-pad and brown duck tape, held on with Alien Tape ! Looks 'almost real' but lets the wood show well.

 

[vfr800ch]

Interesting point about the 30 MOA rail, but when you potentially zero at 50, aren't you just restricting maximum elevation and hence range? Why can't you zero at 50? Excuse my ignorance, I'm new at this.. ;-)

I actually DO want to zero at 50 meters,or even 25M? (this is one reason why I got a 22 LR, to learn how to then increase to up to 300M from 25/50, in steps).

According to chatGPT : (yeah, i'm lazy for now, will learn properly later..)

Using the RevStop zero stop on the Strike Eagle does cap how much usable elevation you can dial above zero.

• If your zero-stop gives you ~47 MOA total “up” from your 50 m zero, that’s ≈ 13.7 MIL of dialable elevation.

What that means in practice (from a 50 m zero, .22 LR)​

Using typical .22 LR match ammo (~1060 fps, 40 gr, BC ~0.13–0.14), the approximate elevation needed from a 50 m zero is:

• 200 m ≈ 6.5 MIL (≈ 22 MOA)
• 250 m ≈ 10.5–11 MIL (≈ 36–38 MOA)
• 275 m ≈ ~13 MIL (≈ 45 MOA)
• 300 m ≈ ~15 MIL (≈ 52 MOA)

Since your dialable limit is 47 MOA (≈13.7 MIL), you’ll run out of turret around ~280–290 m with subsonic/match ammo. With faster high-velocity .22 LR, you might squeak a bit farther (closer to ~300 m), but 300 m usually needs ~51–53 MOA, which is just beyond a 47 MOA cap.

TL;DR

• Yes, you can still zero at 50 m with the 30 MOA base and set the zero stop.
• With the zero stop limiting you to 47 MOA up, your furthest dialable range is roughly ~280–290 m on typical match .22 LR.
• Beyond that, you can still shoot farther using reticle holdover, or by loosening/removing the zero stop for that session if you need more dial.

 

[STex]

VFR, I have that same rifle/scope setup as a loaner rifle. I went with low rings and still needed a cheek riser. I installed a Victor Titan and problem solved. Good luck