Received my barrel and slide this morning and had my machinist buddy help install 24 lb spring. In order to do it he made a special tool as shown below. We stuffed the stuff shown with the tool into the port to hold the slide in the right position. The very end of the tool was clamped in a vise and the gun pushed against it to compress the spring.
Shot 4 rounds loaded with 9 gr of Longshot and 250 gr XTP set at 1.215 inches OAL. First was at 1135 fps, but the other 3 were 1049 to 1081. Maybe the first may have had a miss weighed load? I checked for any bullet setback after chambering the first round and it was ok.
Shot one round that I had set a little deep, 1.200 inches and it was 1144 fps which I had expected it to be higher.
No signs of any pressure so I think I will go to 9.3 gr and see what happens.
Noticed that Clark sent a new firing pin spring with the kit. I did not install. Is it needed?
