I have 2 air arms tx200s in 22 caliber one tx200 and one tx200 HC. When I run them over a chronograph they are at around 640 FPS with H&N FTT 14.66 gr. Is this normal or low. Thanks for any input Jimmy
TX200
- Thread starter JimmyV
- Start date
Sounds like those pellets might be a little on the tight side in the bore! I would say to check your breach seals but if both are shooting that slow it's probably the ammo! My hunter carbine has a pretty tight bore too. Try some Crosman domes and see where your at with those.
I have tried the Crosman pellets with about the same results, I have a vortex kit in one and a tinbum kit in the other.
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Sounds about right. I don’t think you will get over 670, especially if you are high above sea level.
If you want a little more speed consider lubing your pellets or polishing the barrel.
-Marty
If you want a little more speed consider lubing your pellets or polishing the barrel.
-Marty
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The shot cycle on the vortex is very smooth the tinbum not so much. both kits are said to be full power. And they are both very accurate. Of course the chronograph is a Garmin c-1 which measures several different spots down range
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13 plus FPE sounds about right. As Chuckhunter mentioned, check the breach seals to be sure. If they are accurate and consistent, I would be happy and shoot them. Chasing power often results in less accuracy with minimal benefit. The trajectory difference between 13 and 16 FPE is minimal.
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about right, I have a Vortek pg4 in my .22 TX200 MK3 and its shooting Avg of 669 fps with H/N and 687 fps with Crosman Premier Hp.
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I have the PG4 in my MK3 also and was around 670 fps but drop down. I have vortek seals also
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i have shrink wrap tubing on the guide and im getting 740 with 14.5 cp's ,im 100' above sea level.Mine is the old school carbine model.
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I don’t understand the shrink wrap tubing on the guide but would like to know about it. I’m near sea level also.
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740 with a 14.5 seems pretty high for a 25mm TX200. Even the 26mm 97Ks struggle to put out 18fpe in .22. Shorter stroke there though so 
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To me that seems low. I'd expect at least 15fpe/670fps with a 14.66 with a PG4. As others have said, high altitude may be coming into play here maybe or possibly the breech seals. Breech seals are a known weak point on the TX. If it has new piston seals they may be over sized a bit as well which will rob some power. Vortek piston seals may resize and power will climb with use. Other seals may not.
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OK if ya have a lot of free play on the piston shaft when its inside the main spring?put the shrink wrap on the shaft will snug it up ,but not tight.lightley grease the out side of the main spring.Ya might have to resize the main seal?should go down the tube with not much pursuer. Mine is one of the frist TX they were probable a little tighter?OK everybody go ahead and haight me.
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