mikeyblue 28 Posted April 13, 2012 Report Share Posted April 13, 2012 Hi All, I have just finished tuning my TX200 MKII. When I bought it there was a V-Mach installed to a very poor standard. Far to much grease in all the wrong places, leading to heavy dieselling. I have stripped it completely, a thorough degrease, all points of contact highly polished to a mirror finish using Jewellers Rouge and Autosol. I found the piston seal far to tight for the compression chamber, so sized that to fit perfectly. After a relube and polishing the trigger seals I reassembled the rifle. I put a ten shot string through my Chrombo to find this is the most cosistant rifle Ive owned!! 747 747 748 750 747 750 750 751 748 747 Chuffed with that. A 4fps spread with JSB Exacts 8.4gn 4.52 straight from the tin!! Will find out how it groups over the weekend!! Kindest Regards, Mikey Quote Link to post
blind dog 12 Posted April 13, 2012 Report Share Posted April 13, 2012 (edited) Jeepers, Mikey, if modern chronographs weren't so darn reliable, I'd be suspect. That's exellent. I had two inexpensive Chrony F-1s that were bought about five years apart and lined them up--the well-used old one right in front of the new--and they read within 3 fps of each other at 800 fps pellet velocity...and that 3 fps was probably mostly due to pellet losing 3 fps in the inches covered between the two. Digital timers are great! cheers, Rob Edited April 13, 2012 by blind dog Quote Link to post
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