Author Topic: CZ Rimfire Accuracy  (Read 3933 times)

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Offline Peashooter67

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CZ Rimfire Accuracy
« Reply #15 on: December 25, 2018, 12:16:10 PM »
Depending on your use, I would look very hard at the .17HMR.

I had a .22WMR concurrently with my .17HMR's....the .22 never got used.  With the .22WMR I struggled to get MOA; the .17's struggle to get over MOA; the trajectory to subsonic is flatter.  The .22WMR has more energy; so if you have pest eradicating, having a slightly bigger bullet that punches in a little deeper might do something for you.  For me, I've found the .17 HMR has plenty of energy, and capability; I've taken several badgers and several coyotes while gopher shooting.

I am fairly studious in my attention to ammo prices and availability; I shoot high volume gophers in the spring, so price per round and availability is a major concern for me.  The .17HMR was almost unaffected during the last couple scares; .22WMR got scarce.  I prefer the 17 gr Vmax load from Hornady; I generally pay .16 a round for it.  This means buying in bulk when things go on sale; usually it happens this time of year.  Murdochs (an agricultural chain store here in MT and surrounding states) currently has the Hornady 200 rd pack for $32.00 - 16 cents a round on the shelf.  The .22WMR in the 30 Gr Vmax (the preferred load for my rifle) was usually around 22 cents a round under similar circumstance.
The .17HMR has enough different bullet choices to compete and for the most part equal the
.22WMR but with superior accuracy.

Small Light skinned animals I’ll use the typical.17 plastic tipped and for bigger or thick skinned animals “like wood chucks or coyotes .17 hollow point 17gr or 20gr depending.

I have had the 17gr hollow almost exit opposite shoulder of a coyote.
My Marlin .22 mag has been in the safe since I got my Marlin 17v. and haven’t felt the need to buy more .17s yet.

All my cz455’s have been tax drivers with little tweaking out of the box.


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« Last Edit: December 25, 2018, 12:22:33 PM by Peashooter67 »

Offline Ruber

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CZ Rimfire Accuracy
« Reply #16 on: December 26, 2018, 07:14:52 PM »
My experience with newer CZ’s and 22 wmr has been lackluster at best. 

I have a Brno zkm 611 and hk300 that are capable of moa with most quality ammo and will hold 3/4” at 100 yards with their preferred ammo. But I too have struggled to get moa with the CZ-USA 22 mags. 

The variances in the bores just do not work well with the 22 wmr rounds I use.  With a chrono you can see differences.  The CZ’s will have higher average velocities, but much, much higher deviation/spread.  I ran patches with polishing compound down the bore of one of my 455’s, and that helped some, but still not grouping as tight  as my Hk or Brno. 

When I need more distance & punch for rimfire, I reach for the Hk with VMax or tnt green.
« Last Edit: December 26, 2018, 07:20:35 PM by Ruber »

Offline JRR

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Re: CZ Rimfire Accuracy
« Reply #17 on: December 27, 2018, 03:04:13 PM »
Original, first batch, Ultra Lux .  BRNO target adj. peep sights.  No scope.
15 shots at 100 yards.  Geco Match ammo.

Offline aussie57

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Re: CZ Rimfire Accuracy
« Reply #18 on: December 31, 2018, 08:14:19 AM »
Original, first batch, Ultra Lux .  BRNO target adj. peep sights.  No scope.
15 shots at 100 yards.  Geco Match ammo.


Nice shooting. Is this .22LR?

Offline JRR

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Re: CZ Rimfire Accuracy
« Reply #19 on: December 31, 2018, 11:53:59 PM »
22 lr as are all the Ultra Lux 452 rifles.
Here it is mounted in a Boyds stock.

Offline Curtism

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Re: CZ Rimfire Accuracy
« Reply #20 on: January 01, 2019, 05:17:30 AM »
What have you been able to squeeze out of your rimfire setup? I've never been a great shooter, but I have always been decent. I did a little work with my trigger, torqued action to 25 inch pounds and playing with ammo options and got sub MOA @ 100 yards this past week. First time I've ever done it with .22 LR. There was a slight breeze but still pulled it off. At 50 yards same setup gets me ragged holes if I do my part.

Nice shooting!  I'm going to have to get my 455 Trainer out of the safe and start enjoying it and trying some different ammo types.

 

anything