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A forum to talk about Olympic style shooting, rifle or pistol, 10 meters to 50 meters, and whatever is in between. Hosted by Pilkguns.com
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 Post subject: CZ 200T
PostPosted: Mon Nov 14, 2016 9:18 pm 
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Joined: Sun Mar 01, 2015 7:16 pm
Posts: 22
Location: WA, USA
A parent is looking for an air rifle for his son to practice with. I'm thinking of recommending an Air Arms T200 but have a question about filling the tank. I already have a scuba tank with this yoke; http://www.champchoice.com/store/Main.aspx?p=ItemDetailOptions&item=Y200 which I use with this adapter; http://www.champchoice.com/store/Main.aspx?p=ItemDetailOptions&item=001521 to fill my 8001.

The T200 is shipped with a DIN adapter, but I'm not sure if it fits the yoke I have. So far Pyramyd Air has not responded to my messages. I'm on the west coast and need to call in the mornings while I'm at work; if I remember to do so. :)

Does anyone know if the supplied adapter fits the yoke I have? Thanks.

Ranb


Last edited by Ranb on Fri Nov 25, 2016 6:03 pm, edited 2 times in total.

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PostPosted: Mon Nov 14, 2016 9:44 pm 
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Joined: Mon Feb 27, 2012 3:26 pm
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Location: Big Sky country
The adapter furnished with the T200 should thread directly into your DIN yoke.


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PostPosted: Sun Nov 20, 2016 10:46 pm 
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Location: WA, USA
I ordered the air rifle from Pyramyd. Right after it was shipped, I saw that Champions Choice had a another CZ 200 with an adjustable stock. I know a guy who can modify the stock to fit the boy who is going to use it though. The fill adapter fits on my scuba tank yoke just fine.

I was unable to check the speed of the pellets (Diabolo 7.0 grain, .450 mm) with my chronograph as it was too overcast and I need good light for it to see the small pellets. The rear sight is not one I like though as its adjustments are not fine enough; it seems to adjust about one millimeter per click at 10 meters. The trigger is rather heavy and creepy compared to the 8001, but that is to be expected for a rifle that is less than a third the cost of the less expensive precision air rifles.

Image

The top target group is .193" center to center, the lower target is .108"; both are ten rounds each. With a perfect zero I could shoot a 100/100 on the AR-5/10 target, but I'm not likely to do so with this rifle. It will be useful for kids to train with as it is only 6.5 pounds and will fit the smaller shooters after I cut down the stock a bit to reduce the LOP from 13.5" to about 11" or so.


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 Post subject: Re: CZ 200T
PostPosted: Fri Nov 25, 2016 6:14 pm 
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Joined: Sun Mar 01, 2015 7:16 pm
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Location: WA, USA
Some more testing today; but not under the proper conditions. My tank pressure was about 70 bar and I didn't have a means to fill it as my scuba tank was loaned out to a shooting team member.

I mounted a scope to the rifle and was not able to significantly improve the groups I shot before. It was bright enough for the chronograph and I learned that 50-60 bar is definitely too low to shoot with. I should have know better as my 8001 manometer is marked in green at 70-200 bar with under 70 in yellow; fill prior to getting that low.

With RWS 8.2 grain pellets I got 418 fps with a stdev of 13 fps; very poor for an air rifle. The velocities went from 446 fps down to 403 fps in 2-16 fps increments. Hopefully this is just a symptom of low air pressure and not what I should expect at normal pressures from 110 to 190 bar. The 7.0 grain Diabolo pellets at 50 bar did even worse at 405 fps with a stdev of 8 fps.

I will be able to fill the tank tomorrow and can determine what pressures I need to maintain the tank at.

Randy


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 Post subject: Re: CZ 200T
PostPosted: Sat Nov 26, 2016 9:47 am 
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Joined: Mon Nov 29, 2004 2:49 pm
Posts: 2250
Location: Valencia County 4-H, NM USA
Even with a T200, your groups should be MUCH better with the correct pellets, but just as with a precision rifle, you have to lot test to get the ones the rifle likes.

I would not even continue with those 7 grain pellets ... those are for the older rifles (such as a 753/853) or SS pistols.

With our sporter rifles (XSV-40s, T200s, 888s & 887s) each is individualistic. I can go from a 7 ring group (as you display) or a ragged one hole group just with pellet lot differences. Just because a tin is $12-15-19 does not mean it will shoot well in your rifle.

Many of the distributors can send you sample packs of different lots and you can test them.


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 Post subject: Re: CZ 200T
PostPosted: Sat Nov 26, 2016 6:36 pm 
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Location: WA, USA
I can shoot a 100 on the AR-5/10 target with the cheap 7.0 grain Diabolos in my 8001. I'll try other pellets for the CZ.

Randy


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 Post subject: Re: CZ 200T
PostPosted: Sun Apr 16, 2017 11:19 pm 
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Location: WA, USA
The ten year old girl using the CZ 200T is able to handle the air rifle prone and is getting ready for a prone match. The 6.6 pound weight is manageable for her, but the length of pull at 13.8 inches is too much, especially if she tries to hold it offhand.

I cut down the stock to a length of pull of 12 inches and added an Anschutz adjustable butt pad.

Image

I forgot to accuracy test it with various weights/sizes of R-10 and Miesterkugeln pellets prior to returning it.

I should mention that this air rifle is not a youth rifle at all despite the low weight of under 7 pounds. Not only is the length of pull rather long for a kid, the length from the front of the trigger to the back of the pistol grip area is 3.5 inches, similar to a Remington 700. It fits me just fine, but I wear large to XL gloves.


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 Post subject: Re: CZ 200T
PostPosted: Thu Apr 20, 2017 12:49 pm 
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Joined: Mon Mar 01, 2004 4:57 pm
Posts: 525
Location: California
Ranb
That is a common problem with many manufacturers.
They think that just dropping the power makes it a "junior" rifle.
They forget that many juniors are smaller than adults.

Heck some adults (like me) are not TALL.
My AR coach adjusted my P70-jr to the min LoP of 11-3/4 inches. And he said if he could have, he would have made it shorter.
I shoot my x53 rifles with only the butt plate (no spacers), for a 12 inch LoP.

Then again, there are juniors taller than me, that can use a full size rifle.


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