My CZ457 pro 20" likes eley. .113 MOA at 50, and for general plinking, subsonic cci was 1.2 MOA at 100, 2.5 MILS up, 0-10 MPH wind. The factory test target that came with gun was 11mm group at 50M. Factory stock gun except for McRee chassis. I also got a pro varmint 16" threaded barrel one, which also has an 11mm group on factory 50M test target. Put it in a McRee chassis but have not fired it yet.
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CZ 457
- Thread starter A-Rob
- Start date
I bedded a 457 (16") for my daughter and it shoots fine but we too are looking at chassis now.
It likes the SK Red box. Not sure what that group measures, but this is at 100Y
It likes the SK Red box. Not sure what that group measures, but this is at 100Y
Been guilty of not shooting the CZ enough since I had it completed late July early August of this year. I needed to zero some rifles this Christmas morning so I took her out. I still plan on getting the ACC Gen 2 for it.
I had one box of Polar Biathlon left over from my Vudoo and surprisingly the CZ shot well with it. Attached are two back to back groups with the Lapua before I moved onto another rifle to square away.
Edit: pics finally added
I had one box of Polar Biathlon left over from my Vudoo and surprisingly the CZ shot well with it. Attached are two back to back groups with the Lapua before I moved onto another rifle to square away.
Edit: pics finally added
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Interesting to see you are running an arca rail on the La Chassis. Are you doing that to try to stiffen the forearm up? If so, how is that working? On my wife's build that is my only knock on the La Chassis would be the flex in the forearm. I kind wish they would look at making something like a competition forearm that would have more wall thickness to stiff it up and even a bit wider to give you better stability. However, I do understand to build a chassis that light you have to give something somewhere. I like Grey Birch's modular design because it allows them to create use specific forearms and butt stocks in the future.
I like how he hung a coil of garden hose off the front to act as a counter balance. 
Water was running as well, that's fluid dampened harmonics man.I like how he hung a coil of garden hose off the front to act as a counter balance.
The GB La Chassis was never intended for a truck axle barrel. The forend is super flexy so the add-on arca rail helps a little but the flex is definitely still there. Honestly it’s place holder right now until I can get off my ass and order the Gen 2 ACC.
There's another CZ comp chassis coming in the next couple weeks.
