I saw this thread https://www.airgunbbs.com/showthread...h-spring-issue and wondered how the balls are fitted and changed. Are the balls shrunk into the hole in the breech block? Are they fitted and then a pin put in? Is the hole machined from the front of the breech block, then the ball and spring put in and a plug fitted behind them?
As some of you know, I am underwhelmed by the HW25 and I gave the one I had away. Apart from the sights they are really no better than a Diana 23/ Milbro 76.