I recently bought a second hand HW90. It looked in excellent condition but on closer inspection there are a few issues I need to sort out and Iím hoping someone can point me in the right direction.
On first inspection I noticed a few small, possibly insignificant issues.
1. Small locking screw on front trigger guard missing
2. Valve covering screw and o-ring missing
3. Metal scraping sound when cocking.
4. Tiny screw inside actual trigger blade missing (not bigger screw directly in front of trigger)
First issue I have, trying to cock for first time, sear wonít latch. I discover that the safety button is either in or out (not sure which way around it was), pushed it in, gun latches. After taking a few shots with it, I noticed that it was a little under powered @796 fps with JSB exacts 8.44gr which is around 11.88 fpe. I took it into a gun shop for it to be pumped up a little. Settled on 921 fps around 15.90 fpe. Shoots very nicely at this speed.
On Saturday I decide to inspect why there is metal scraping when being cocked. The two screws on either side that hold the gun to the stock are quite loose. The large screw that holds the trigger guard that should have the small locking screw is also quite loose. Remove stock and I notice some light scuffing under the cocking lever. I do a google search and find an exploded diagram that shows there should be a plastic glide on the lever. Iíll have to either fashion one out of something or order it off the site I found with the exploded diagram (https://www.gunspares.co.uk/products/24574/HW90 for those who are interested, they keep all the little bits I need).
When I put the rifle back together I tighten all screws that were loose. Try cock gun, very difficult to break barrel, also wonít latch again. Loosen two front stock crews and the breaking is immediately easier. Push safety button (which is now extremely hard to do) and eventually get it latch. Try pull off a shot but trigger wonít release sear, I can pull it all the way back but thatís it.
I decide to take gun apart again but as Iím loosening the front trigger guard screw, the sear releases and a wild pellet shoots into the wall next to me! So I realise this screw needs to be looseÖ.can someone explain to me why please, apologies if this is a dumb question? Also, why do the two front stock screws need to be loose so that it doesnít make the barrel impossible to break?
I have put it back together again and will order all the little bits missing, if anyone knows where I can get these parts locally Iíd appreciate it, otherwise I will order off the UK site, not ridiculously expensive.