Finally made up my mind on a rimfire rifle

I'm also still getting that wild cold bore flier. I mean, it's really out there. Like 5 inches off at 50 yards when torqued to 20 in/lbs. I also noticed that the severity of the flier is reduced with increasing amounts of torque. At 35 in/lbs, it's only off by an inch or so, but I'm getting the best groups at 20 in/lbs.
Nothing to do with your CZ, but I get a cold bore flyer with my target rifle too. I've been shooting my H&R M12 in a 50 yd. benchrest comp recently; Eley club ammo. I never noticed that before, but also never shot that rifle with benchrest precision in mind. It's maybe 2" off and might take another shot or 2 before it starts to group. Crazy.

IMG_20180101_233346023.jpg
 
Funky first shots are a common rimfire target shooters malady I guess, especially with clean bores. Years back when my knees allowed me to run a series or two of summer biathlons, most of the other regular competitors would shoot their biathlon rifles prior to the event with the brand/lot of ammo they intended to shoot that day. They would leave them “seasoned” with the lube from those prior shots and would run their event. I was told by a few different people that this helped to reduce the tendency for the initial shots to be off, so I always believed it. (Standing and kneeling was fired at falling circular targets with five 4.5” circles at 50m, prone was at five 1.8” circles.)

I never owned my own biathlon rifle, so I would rent the Marlin biathlon rifle, and pay for the necessary number of rounds of Eley Tenex that the series had for us non-serious competitors to use. (Depending on if it was a 5K two position or 10K three position event, 10 to 15 shots were fired by each competitor.) IIRC it was something like ten bucks extra tacked on to the entry fee.

At one 5k event held at Glen Helen, Ca. I actually made it to the 5-target standing shoot-off, but got beat in the final 4-2 by a lady who both ran and shot really well. (She took home a brick of Tenex.) These serious folks (men and women) were far, far better runner, and shooters, than I ever was. :thumbup:

Stay safe.
 
I get the flyer everytime the barrel had a chance to cool. I'm just not sure of what's going on, but I'm being told it's normal. I've never had that problem with my last rifle. I mean, it would be off by maybe 1 MOA at the outside, but nothing like what I'm seeing with the CZ.

I do clean my rifle every 500 rounds or so. Patches using a .17 cal jag and rod, followed by brushing with a nylon brush. 20 rounds to season the barrel. Then, if I let the rifle set for 10 minutes, I get the flyer.

I'm really hoping that this bedding job does the trick.
 
The flyer after cleaning everyone has warned me about, I was hoping there wasn't a flyer with only 10min, it is longer than that between stages. On my next trip to the range I will keep this information in mind to test if I will also have this problem.
 
Never bring a clean bore to a match
Right. Or at least not without knowing you'll have the opportunity to shoot 20 foulers.

I was never really big on cleaning my rifles until I saw accuracy drop off. I mean, I'd run a bore snake once in a while, but that was it. I really don't know where I got this thing stuck in my head that I should clean every 500 rounds or so. I think I'm just worried about getting a carbon build up.
 
Hey guys, I may have accomplished my goal of having a setup that does pretty well with an economical ammunition.

To address all of the issues that I've mentioned thus far, I bedded the action to the stock. I also got in some wolf match extra, federal gold medal match and some SK semi auto.

After shooting some groups and concluding that the SK was the best of what I got, I decided to put it on paper.



The first sighter was to refoul the barrel in to the SK and the second sighter was to confirm zero. The wind was kicking today from left to right with gusts and occasional headwinds. I held the best I could, but it got the better of me a few times.

The SK semi auto shot pretty well and it's half the cost of eley match.
 
First round flyers are often caused by the dreaded carbon ring. Cleaning the chamber and just beyond it may take care of it. Another cause are barrels not free floated or loose actions. To clean or not to clean raises lots of arguments but my rifles usually win matches and don't have flyers. I keep them clean. I have never had a dirty bore shoot better except some times with a few sighters before the event. Some matches are best group with no sighters or warm-up shots. Some guys believe that you need hundreds of seasoning shots without cleaning or just chamber cleaning. If you don't shoot matches it doesn't matter much. I expect my guns to make difficult shots the first time with a cold bore. I think flyers are a problem that needs to be fixed.
 
First round flyers are often caused by the dreaded carbon ring. Cleaning the chamber and just beyond it may take care of it. Another cause are barrels not free floated or loose actions. To clean or not to clean raises lots of arguments but my rifles usually win matches and don't have flyers. I keep them clean. I have never had a dirty bore shoot better except some times with a few sighters before the event. Some matches are best group with no sighters or warm-up shots. Some guys believe that you need hundreds of seasoning shots without cleaning or just chamber cleaning. If you don't shoot matches it doesn't matter much. I expect my guns to make difficult shots the first time with a cold bore. I think flyers are a problem that needs to be fixed.
Yeah, since I'm pretty much settled on my chosen ammo, I went out and did some experimenting yesterday. It appears that bedding the action to the stock did make a pretty big difference.

I started out at 20 in/lbs torque on the action screws and increased the torque in increments of 2.5 lbs. I am now seeing very small differences in accuracy with changes in torque. I'm even thinking that the changes in accuracy could very well have been me. I also noticed that the cold bore flyer decreased with the increases in torque. At 35 in/lbs, the first cold bore shot is only high by 1 MOA, which I'm happy with.

Now I'm wondering how much torque I can get away with. I know that the torque spec on some chassis rigs goes as high as 65, but I don't want to damage the bedding.

I really wish the pillars I ordered had come in. I suppose I can still add those, but it's shooting so well that I kinda don't want to mess with it.
 
Yeah, since I'm pretty much settled on my chosen ammo, I went out and did some experimenting yesterday. It appears that bedding the action to the stock did make a pretty big difference.

I started out at 20 in/lbs torque on the action screws and increased the torque in increments of 2.5 lbs. I am now seeing very small differences in accuracy with changes in torque. I'm even thinking that the changes in accuracy could very well have been me. I also noticed that the cold bore flyer decreased with the increases in torque. At 35 in/lbs, the first cold bore shot is only high by 1 MOA, which I'm happy with.

Now I'm wondering how much torque I can get away with. I know that the torque spec on some chassis rigs goes as high as 65, but I don't want to damage the bedding.

I really wish the pillars I ordered had come in. I suppose I can still add those, but it's shooting so well that I kinda don't want to mess with it.
Lol. You are in the rabbit hole now.
 
Lol. You are in the rabbit hole now.

Ya think?! Lol, and I so didn't want this to happen again. Man, is it fun. I've had the rifle a month and I have like 5 bricks through it.

I have a different lot of SK Semi Auto coming in to compare to the lot I have now. Once I confirm, I'm gonna order a case, which may or may not hold me for a while.

Now to find something for long range.
 
On the issue of cleaning, I have been doing it. .17 cal rod with .17 cal jag and bore tech rimfire blend followed up with a .20 cal nylon brush.

I did order a bore scope, but there was some sort of SNAFU with the shipping.

My question now is whether the flier becoming less prevalent is due to the increased torque or perhaps the barrel being broken in.
 
Why a .20 cal bore brush, especially nylon, in a .22? I see that doing next to nothing. You won't harm your bore with a good .22 bronze brush.
 
Last edited:
Nothing to do with your CZ, but I get a cold bore flyer with my target rifle too. I've been shooting my H&R M12 in a 50 yd. benchrest comp recently; Eley club ammo. I never noticed that before, but also never shot that rifle with benchrest precision in mind. It's maybe 2" off and might take another shot or 2 before it starts to group. Crazy.

View attachment 1166100
The guy's over on Rimfire Central might be able to he'p ya. They can often be rude and/or snooty, but they are knowledgeable.
 
Why a .20 cal bore brush, especially nylon, in a .22? I see that doing next to nothing. You won't harm your bore with a good .22 bronze brush.

When I got the rifle, I assumed that .22 cal cleaning equipment would work. It didn't. I tried 3 brands of .22 cal patches on a .22 cal jag and they wouldn't go in without a LOT of force. I checked CZ's website and it said that their chambers and bores are on the tight side and they recommend a .17 cal jag and rod, so that's what I got.

The guy's over on Rimfire Central might be able to he'p ya. They can often be rude and/or snooty, but they are knowledgeable.

I asked over there as well and it's pretty much the same thing. Some guys saying that their rifle doesn't throw a cold bore flyer and that they wouldn't own a rifle that did; and the rest saying it is normal. Lol
 
I have 3 CZ .22 rifles and have had a few more. I have never had trouble with .22 brushes, jags or rods. I use 1 1/8" patches. My rods are for .22 cal. They are solid one piece brass. For just running a patch through, a piece of weedeater line with a knot melted on the end works great to pull patches through.

Out of the 3 CZ I currently have, one throws a cold bore flyer. Ironically, it is the one that shoots the best groups.
 
Last edited:
When I got the rifle, I assumed that .22 cal cleaning equipment would work. It didn't. I tried 3 brands of .22 cal patches on a .22 cal jag and they wouldn't go in without a LOT of force. I checked CZ's website and it said that their chambers and bores are on the tight side and they recommend a .17 cal jag and rod, so that's what I got.



I asked over there as well and it's pretty much the same thing. Some guys saying that their rifle doesn't throw a cold bore flyer and that they wouldn't own a rifle that did; and the rest saying it is normal. Lol
Yup, you get about 20 different opinions on every question, lol.
 
Eh, the rifle is getting cleaned, that's what matters. What matters most is that I'm now enjoying shooting my 457 and all thoughts of a new barrel have left my head ... at least for now.

Now what I have to work on is not getting excited when I shoot a string of bulleyes and screwing myself up.
 
Back
Top