My 1377 build off entry

Here's my pcp powered 1322. With a fill of 2500# it's getting 51 shots from 658 fps up to 710 fps and back down to 650 fps with14.3gr premiers. I am using a stock 1377 hammer and spring a modified 1377 valve body with seat bored deeper almost to tp and the "toilet plunger" style plug made just big enough to cover the outlet hole. It has a 20 inch barrel with a 24 inch stainless full shroud. Sear, hammer, and trigger polished for reduced pull. The pellet hitting the target is louder than the shot. It's begging for a repeater breech that will happen soon.







This is a couple of 5 shot groups from 20 yards