Re: TX200 Project by roadrunner » Sun Mar 01, 2015 10:34 pm
The first thing you need to know about the kit is the titan spring will shrink by about 5mm, this will happen over about 200 shots and only by shooting the gun, after it shrinks the power can be upped by adding power washers, but i found to many washers caused the rifle to become harsh with no extra power gains,you will also have to take care not to leave the gun cocked by mistake, yes that killed my second spring,my current set up and the best ive had as yet is an uncut titan spring polished on the guide end, no power washers and the thinest slip washer,shot a bit hot until the spring shrunk but has settled nicely at 11.5 fb with AA express 7.9 grn to fit the kit, wash all the grease away with white spirit not turps though, replace any seals, dont polish the piston or the inside of the comp tube,waste of time,use the moly slide on the piston slip rings add three drops to the inside of the comp tube and wipe it around the top inch of the tube then slide the piston in and out to coat the tube,the moly slide is safe infront of the piston as long as its not pooling at the bottom, coat the spring in the supplied grease not to much as it will fling off, grease the slip washer and insert the spring into the piston, i used moly slide on the spring guide,the comp tube and the piston and the inside of the guns action is also lubed with moly slide rebuild the gun and shoot it, you will require a chrony to see what its doing what should you expect, without the piston weight the gun will have less recoil with medium and light pellets but heavy pellets wiĺl feel worse,dont expect single figure fps readings either the lighter piston shows variations in pellet differances,the titan spring will give a faster shot cycle and together with a lighter pellet you should see 815 fps and 11.5 fb from a 7.9 grn jsb pellet my prosport shoots very well and now i found a pellet thats accurate and gives a soft shot cycle iam as happy as a dog with two tails my prosport shoots as accurately as my s400 but then it always did the differance now is its easier
