when you say loctite i hope you mean thread lock, if you use green or red you will never get it apart again with out using heat. Use blue thread lock.
Why is my .177 HW77k hold sensitive? The only things I have done to it, other than shoot it, have been to run a small amount of JB bore paste through the barrel for exactly 40 passes. It was still fairly new when I did that and I got out some orange-tinged protectant? I also loctited the stock screws and they have stayed firm.
Somebody mentioned that it sounds inconsistent rather than hold sensitive. Well, I went to my first FT match today with the HW77k. It started out pretty well, and didn't end so great. I hit the paddle for about 9-10 of the first 12 shots and only hit the paddle about 5 or 6 more times for the remaining 28 shots. It was about shot 13 that my poi shifted. My holdovers were no longer the same as they had been prior to the POI shift so I couldn't hit anything. I've run through about everything I can think of with this gun. I'm seriously considering buying some Maccarri components and replacing both seals and the spring. I'm also seriously considering selling this gun before I pass the point of no return (self-tune). What are the chances that a simple lube tune/new seals and spring could iron out whatever is going on with my accuracy? Or would I just be better off selling it to someone before I open it up, with full disclosure that its a squirrelly weasle of a gun to shoot accurately?I have tuned an xs25 in the past, resulting in more smoothness but no better accuracy. The buyer told me he found a pellet it really likes though. That helped to change my mind about trying lots of pellets and I think it was 18 different kinds of pellets before finding the H&N FTT 8.64 for the 77k. When its shooting good, its quite good (for a springer), but when it's bad, it's BAD.I like the gun, when it is shooting accurately on a consistent basis. I want to throw it in a lake when the POI shifts on me for no reason.