I just installed Rich's tune kit (stock spring) with the brg in my Black Shadow .22. The gun was a good smooth shooter before I installed this kit as I had lube tuned it when it was new Well, it's even better now. The power is the same as before but it is quieter and smoother when cocking and shooting. I am vey pleased with the kit. The guide and top hat fit very snug and Rich supplies good instructions. I also installed the trigger insert in a CFX and it made a big differnce in the trigger. The gun is shooting RWS Superdomes @ 725 fps ave and Crow Mags at 635. I've shot RWS s-domes, RWS s-hp, CP hp, Beeman crowmags, Gamo hunters and it groups the best and has the most energy with the superdomes. I installed a Simmons 44mag 6.5x20x44 scope and a GTX 111 trigger in it and it is my go to gun for hunting. I'm going hunting Sunday morning to see how it does on the squirrels.
Thanks Rich for a quality kit and good sevice.
By the way , if anyone is interested I am going to sell my CFX .177. It has Rich's trigger insert, rollers and slide, an Apex seal and has been lube tuned. It is an accurate gun and shoots RWS s-domes at 865 fps. Bought new in March '06. I just like .22 better and am looking for another .22 break barrell. I have $220.00 in it and will take $185.00. Thanks