CZ 527 Varmint .233

S

sirgilligan

New member
The long search has ended!

It will be a while before I get a scope, but I will be asking on all of the forums what scope will clear the bolt handle, etc..., so if you have any suggestions and pictures please respond.

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CZ 527 Varmint
5.56 NATO
1 in 9 twist
Set Trigger
 
For me, it was more about rings than scope. I am using a new old stock Denver Redfield Golden Five Star 3-12x with the tombstone range finder on mine. I had to use the tall CZ rings, and even then, it is barely enough.
 
CZ USA will provide you a recontoured bolt handle free of charge, so that you can utilize "medium" rings and bring the scope down closer to the stock for a better cheek weld.
 
Thanks. That is excellent info to know that CZ has a bolt handle for medium height rings.


I have to do some research on how to mount a scope as low to the bore axis as possible. If anyone has recommendations on how to get this setup that would be great.
I think I want to try out Leupold for the scope. I have a Bushnell Elite 6500 on my hunting rifle and it is excellent value and I have had no problems, I was thinking of trying something different.

Any recommendations would be great.

Usage: Target shooting out to 300 yards and hunting, small varmints, farm/ranch pests, and where legal use 70 grain loads on Antelope or White Tail.
 
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Usage: Target shooting out to 300 yards and hunting, small varmints, farm/ranch pests, and where legal use 70 grain loads on Antelope or White Tail.
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Unless CZ changed their twist rate in the 527 I think you may have some trouble with 70 grain bullets.

I have a 527 and it loves 45 and 50 gr bullets will shoot 55 gr bullets but the groups are not as tight.
The 45's and 50's will stay under .500 MOA all day long if I do my job, which by the way is not hard to do with the triggers that's on these rifles.
I've actually had several groups in the .250 MOA range when I concentrate on what I'm doing.

As for now the rifle has a 3x9 Burris scope but I'm thinking of going to a Redfield Revelation 3x9 with a 50mm objective lens, this is when the tall rings come in handy.

I've had the rifle for sale on my website but I'm thinking about pulling it off and just keeping it.

Best Regards
Bob Hunter
www.huntercustoms.com
 
I have a CZ 527 Varmint with a 1:9 twist that shoots pretty well with 69 grain Sierras although it shoots better with from 40 to 52 grain bullets.

40 grain Nosler BTs with H335 average 0.407 with the best load averaging 0.344.
52 grain Sierra SMKs with H335 average 0.414 with the best load averaging 0.305.
52 grain Berger # 22408 with H335 average 0.441 with the best load averaging 0.206.
With H4895 powder the same bullets didn't shoot as accurately.

My rifle didn't seem to like 60 grain bullets much with any powder or bullet.

63 grain Sierra # 1370 with H4895 averaged 0.483 with the best load averaging 0.358.
The same bullet with H335 averaged 0.628 with the best load averaging 0.468.

69 grain Sierra # 1380s with H4895 average 0.499 with the best load 0.378.

75 grain Hornady BTs average 0.672.

One thing I concluded was that H335 worked better with bullet weights at 55 grains and lighter.
H4895 seemed to produce better accuracy than H335 with bullet weights above 63 grains.

With the heavier bullets accuracy may be more bullet dependent.
I didn't try many heavy grain bullets, so I can't be certain.
 
My apologies to all that's reading this thread, sometimes I'm wondering if I'm sitting here with my eyes shut.

In my other post I mentioned the twist rate in the CZ rifle and I now noticed the OP has the varmint model, it does have a 1x9 twist so yes it may shoot the 70 grain bullets just fine.

My CZ rifle is the American, I believe it has a 1x12 twist so it stands to reason it loves the lighter bullets.

These are fine little rifles, with the best factory trigger out of the box on any rifle I've ever owned.

I'm having good results with IMR4320 and Speer 50 gr TNT bullets.
A friend has the same rifle as mine, he's had good results shooting Sierra 52 gr match bullets and H380.

Best Regards
Bob Hunter
www.huntercustoms.com
 
I have a CZ 527 Varmint with a 1:9 twist that shoots pretty well with 69 grain Sierras although it shoots better with from 40 to 52 grain bullets.

63 grain Sierra # 1370 with H4895 averaged 0.483 with the best load averaging 0.358.
The same bullet with H335 averaged 0.628 with the best load averaging 0.468.

69 grain Sierra # 1380s with H4895 average 0.499 with the best load 0.378.
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I guess I need to raise my expectations with this rifle, because, those look like better than pretty well groups to me.

And I really appreciate the load information. Powders are starting to get on the shelves again. I have some H335 still and some Ram Shot TAC still on hand.



My apologies to all that's reading this thread, sometimes I'm wondering if I'm sitting here with my eyes shut.
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I do that all the time.
 
With the right bullet, powder and and a steady shooter the CZ 527 in 223 will shoot 1/4" holes at 100 yds. all day long. And the heavy varmint barrel model doesn't seem to care how hot the barrel gets. Mine has become my favorite rifle. I like it so much I want to get a 550 in .308 even though I don't really need another rifle. But then one can never have "too many" rifles. :D

Try the 52 or (I shoot) the 53 gr. Sierra MatchKing for targets and 65 gr. GameKings for hunting over Varget (if you can find any). I believe you'll be very happy with the results.
 
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Congrat's, enjoy the new rifle. :)

Here's a CZ 527 .223 Cal. Varmint Kevlar Rifle with a Weaver 6-20x40mm AO Grand Slam Riflescope and CZ Rings, Medium (.555").

cz527_06.jpg
 
Update on progress so far:

I ordered:
"New Style" bolt handle from CZ USA, part #40110.
"Weaver Adapter Rail" from CZ USA, part #19010.
Extra Magazines from Grab A Gun with FREE shipping!

I chose the Weaver rail adapter so that I can take my rifle to the local gun stores and be able to try out scopes there since I figure that most places will have rings that fit the weaver or picatinny mount probably more so than CZ specific rings.

Also, I am going to have to do a little sanding, the barrel is not completely free floating in this walnut stock.
 
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