457 Varmint vs MTR - Accuracy

D

-Doug-

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For those that have experience I am curious on the accuracy difference between the basic 457 Varmint and the match grade version MTR.

Specifically wondering:

-will the MTR shoot non match grade ammo (example CCI) better than the varmint?
-when shooting match grade ammo how well does the varmint stack up?

For my purposes Outlaw/CRPS…etc I know either will work as I will be the largest source of error however for the occasional time I like to bench rest shoot to see how small of a group I can make I would like to know the answers to my questions above.
 
I am curious as to what the difference in the MTR match chamber versus the varmint chamber. Hard to say how either will shoot. Kind of tough to compare apples to apples in the 2. Either rifle is dependent on ammo selection. They may not necessarily like the same ammo. I just picked up a varmint but have yet to shoot it. Just waiting for a day that it gets above -10 and a tuner adapter that will fit the threads to try my Beggs style tuner on it. I have a few different Eley ammos to try but the biggest issue is when would I be able to get more and at what cost?

I myself would likely go the cheaper route and use the money saved if it does not shoot well enough you could get a prefit aftermarket barrel.
 
I don't have experience with the regular varmint but I do with the MTR, it's not a fan of CCI ammo, seems to be the norm over at rimfire central aswell, my AVG group with CCI SV was 1.119 at 50 meters which is terrible.
SK seems to shoot the best for me, Last spring I did a bunch of testing with what I would call "regular" ammo to see what grouped best out of a match barrel. I can post them later. I have a ton more to try here for when the weather and wind is cooperating.
 
Craig0ry said:
I don't have experience with the regular varmint but I do with the MTR, it's not a fan of CCI ammo, seems to be the norm over at rimfire central aswell, my AVG group with CCI SV was 1.119 at 50 meters which is terrible.
SK seems to shoot the best for me, Last spring I did a bunch of testing with what I would call "regular" ammo to see what grouped best out of a match barrel. I can post them later. I have a ton more to try here for when the weather and wind is cooperating.
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That would be great to see.
I’m curious if match grade chambers just shoot standard ammo poorly.
Rather have a gun that can still get good results from cheap stuff if needed.
 
The 457 Varmint has the same CIP spec chamber that all other bolt action CZ 457's have. Only the MTR and LRP have the "CZ Match" chamber. The difference between the two is one of length more than diameter. That is to say, the "match" chamber will be a little shorter in length than the standard CZ CIP chamber.

It is important to keep in mind that the chamber is only one part of what can make a rifle shoot well. CZ says that the match chambered models will shoot to 1 MOA (0.5" five shot groups) at 50 yards, with the caveat of "depending on the ammunition used".

The other much more important part is the barrel itself (or, more accurately, the bore). CZ rifles often have good factory barrels for a mass produced rifle, but there's no way to know how well a particular rifle will shoot until it is user tested. The match chambered models will have barrels that are made to the same standards as the non-match chambered barrels.

CCI SV ammo is not usually especially accurate. Shooters may find it harder to chamber in a match-type chamber than SK and other European ammos because, according to Brett Olin of CCI (in 2010), CCI SV bullets have a wider driving band. In other words it's a bullet shape issue that explains CCI being harder to chamber than other .22LR ammos.
 
grauhanen said:
CCI SV ammo is not usually especially accurate. Shooters may find it harder to chamber in a match-type chamber than SK and other European ammos because, according to Brett Olin of CCI (in 2010), CCI SV bullets have a wider driving band. In other words it's a bullet shape issue that explains CCI being harder to chamber than other .22LR ammos.
Click to expand...

Add the thick wax they use compared to the thin oily lube on others and I bet that is where lots of peoples extraction issues come from too.
 
My MTR doesn't care for any CCI ammo. hard to chamber the first
10/12 rounds after that won't chamber CCI at all .

I have shot the 455 Varmint which will chamber CCI
not bad accuracy only inconsistent .

I'll stay with the MTR & SK Standard plus ..
no need to change barrels.
 
Here's some of my results from "run of the mill ammo" through the MTR at 50 yards,
I have a ton more to test and photograph. The only CCI that I've shot that had what I would call "Decent" results was CCI tactical, Unfortunately I don't have a photo

https://i.imgur.com/44ibFYi.jpg[/imt
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I cannot come to shoot any rimfire ammo that is anything than lead. In other words no copper coating of any kind.

The only thing that I have shot CCI Blazer out of is an old Remington Scoremaster. That is its ammo of choice. The 2 pistols we have that is a different story.
 
cycbb486 said:
I cannot come to shoot any rimfire ammo that is anything than lead. In other words no copper coating of any kind.

The only thing that I have shot CCI Blazer out of is an old Remington Scoremaster. That is its ammo of choice. The 2 pistols we have that is a different story.
Click to expand...

My 10/22's only see copper plated for the most part, They are gopher guns, They mainly see CCI mini mags and Am eagle 38gr HP
 
Having issues loading cheap ammo into an MTR is concerning to me.
I’d like ti be able to punch small groups with SK but practice positional shooting with CCi blazers
 
-Doug- said:
Having issues loading cheap ammo into an MTR is concerning to me.
I’d like ti be able to punch small groups with SK but practice positional shooting with CCi blazers
Click to expand...
You will probably be able to outshoot CCI Blazer relatively quickly. I had to step up from CCISV because in the solid positional stuff I was outshooting my ammo. Thing is, a $600 aftermarket barrel meant I can now shoot SKS+ now better than CCISV ever did. The factory Tikka barrel was the limiter. Your CZ may be different though.
 
-Doug- said:
Having issues loading cheap ammo into an MTR is concerning to me.
I’d like ti be able to punch small groups with SK but practice positional shooting with CCi blazers
Click to expand...

I think you and I are chasing the same unicorn.

Practicing with cheap ammo is frustrating, did you miss because of ammunition or technique?

With all the different manufactures of cheap ammo you are nearly certain to find one that will shoot ‘well enough’ in a said firearm, whether that’s good enough is up to you.

It’s hard to practice when you outshoot your ammo..

Lol.

Good luck

Good luck.
 
The Blazer and Automatch I find "acceptable" with the avg groups being .633 and .670. SK magazine shoots good in the MTR, that's it my practice ammo, still a bit more pricey than the average brick though
 
I have a CZ MTR and it's very hard to chamber CCI SV. In fact, it won't even chamber in my Rem 40X or Anschutz BR gun. SK+ is my practice ammo for these.
I use the CCI SV in all my non match chambers and the average accuracy is around .6 to .75 @ 50 yds.
My Winchester Wildcat bolt gun (aka Toz-78) shoots CCI SV the best. The chamber in that gun is slightly tighter than standard.
 
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