Just traded in my Huntsman Regal(too light for me) and as part of the deal I got an older model HW77 full length in a nice Thumbhole stock .22 cal. Now internally it has a heavy duty stainless spring guide (looks like a TR Robb one) which when I added one preload washer to bring the power up a tad stoped the piston latch from engaging, it seems very long but could be shortened. I fitted a delrin spring guide and top hat from a TX kit and it shoots OK around 10.5 ft Ibs but the spring has a lot of preload and is a bugger to get the trigger block in.no Idea what make of spring it is,
Now my local shop gave me a new HW77 spring he had in stock but the internal diameter is too small for my spring guides are the later springs smaller ID?.
Question; is it worth buying spring guides that fit, will it fit over the latch rod OK ? Haven't stripped it again yet.
Option 2 is just buy a new tuning kit with a new spring .
Fancy a V Mach never tried one.
Any advise as always very greatful.