TX200 MKII - Walnut

Spring has less load due to steel top hat replaced with Nylatron one with shorter shoulder length resulting in less weight which could have an effect on piston speed, spring pre load could be increased but nice how it is.
Lots of variables in a springer for sure. Just nice to improve things from a gun that had swept volume mainly designed for plus 12ft/lb when adding stronger spring for UKs overseas markets and UK had weaker spring for home market but still with the long stroke.
The internals of the gun I’m on about is for TX200mk3 and later Prosport not the TX200mk2
Sorry should have seen the main post was for the TX200 MKII

Edited by Stuart - 01 Aug 2023 at 1:01pm

I see 👍🏻.
Thanks.

Hello Pete.
Have a read of this site, it explains it better than myself but I have done similar modification on my Prosport
and has improved the firing cycle and increased accuracy. Piston extension resulting in Less swept volume of the piston giving marginally quicker piston time, not a faster piston just shorter time, not increased power just better feel when that shot is taken.
Definitely recommend these modifications.
Go on site below.
https://nbroadsman.me.uk/index.php/air-rifles/air-arms-tx200-hc-tuning

Short stroked my Prosport and with an O’ring seal running at 11.2 ft/lb .177 jsb 10.3 head shots on Rabbits
Just as dead as with a .22.   Accuracy is what I want and short stroking has improved this gun.

INDER wrote: J-S wrote: The HW97 and AA TX200 are both very much top end springers, there are other options for hunting though if you want more power - the HW80 is a great break barrel air rifle and some offerings by Diana aswell. Yes JS,  I believe in .177 for feather and .22 (And Above) for fur. I believe TX and HW97 are best in .177 and Diana52 and HW80 are best in .22 so will pick up all four (One can wish isn't it ) -Inder