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17 Hornet CZ 527 first review

7.6K views 14 replies 8 participants last post by  glennasher  
#1 ·
I picked up this rifle a couple months ago to celebrate a new job. I added a Vortex Diamondback Tactical 6-24x50 FFP scope with Leupold Medium 30MM rings. The CZ 527 action is a Micro Mauser action with controlled round feeding. The action it's self is not as smooth as it should be but should get better with break in.

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The trigger on this rifle is a Single set trigger. You can use it like a normal trigger or you can push the trigger forward setting the trigger. Using the trigger the normal fashion I have a trigger that breaks at 2.5 pounds. As a set trigger it breaks at 14 ounces. Not a hint of creep on either method.
The safety is backwards of the normal. You pull the safety back to shoot.
The barrel of this varmint model is 24" with threads for a suppressor. The rate of twist is 1-9".

Shooting the CZ 527 varmint in the 17 Hornet is a true pleasure. zero recoil, and the scope stays on the target.
The Factory Hornady 20 gr bullets didn't shoot awesome. I was about 1.25" at 100 yards. In fact about everything I shot was 1" or more. I loaded some 25 gr Hornady with no love. The center group is Nosler 20 gr.

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My first groups with the 20 gr hornady were 3 shot groups.

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Those were very good so I focused on the Hornady 20 gr and tried a lot of powder changes. The 12.2 were just hard to pass up. The two groups at the bottom were just over 1/2". I will take that all day long. Then I shot another 3 shot group like I did before.

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After about 100 rounds now I have found that this rifle doesn't like to be cleaned. It likes to run a little dirty and it took a bit to figure that out.
Overall I am very pleased with the rifle. The more I shoot it the better it is shooting. Maybe I am getting used to the recoil. It should make for a very nice ground squirrel and rock chuck rifle. Not to mention it is just plain fun to shoot something that has no kick.
 
#4 · (Edited)
The 17 Hornets are just a really fun little gun to shoot. Screw a can on the end of those things and you'll just giggle like a little girl every time you pull the trigger. I shoot both of mine suppressed and their like shooting a pellet gun on gorilla steroids. :bthumb:

I load 12.2gr of 1680 w/20gr Vmax also. It's kind of a "go to" load for a lot of us shooting CZ 527 17 Hornets. I've loaded up to 12.4 and it shoots a bit faster but doesn't group quite as well as my 12.2 load.

I have a couple friends that use 12.4gr Hodgdon CFE BLK w/20gr Vmax and they're VERY happy with that particular load as well.
 
#6 ·
I use CFE black and have found 12.4gr and up shoot very well with any 20gr bullet. Plus it leaves almost no copper fouling.

I shot several different loads last night with dog town 20gr .17cal hp bullets midway sells and was shooting a consistent .5” in very bad conditions (low light, high wind, shooting off my picnic table). I think under better circumstances it would be tighter.

My rifle likes to be run dirty too. This is one of the reasons I use CFE black as it doesn’t leave any copper in the barrel so it really extends the usable accuracy. When I clean I just run a bore snake down the barrel a couple times. Every 200-300 rounds I’ll use wipeout and get very little copper residue. Whatever is in CFE works.
 
#8 · (Edited)
The bedding or lack there of was an issue with mine. Not even the recoil lug was bedded.

There was a cz varmint in .17 hornet that sold here locally for $385 because the owner said it wouldn’t shoot anymore. The new owner spent 6 hours removing copper and now it is a .5” gun. Be wary of copper fouling, I use wipe out. It works fantastically on copper especially if left in overnight. I’ve heard others say that the .17hh will copper foul some rifles in as little as 30 rounds, mine doesn’t seem to though.