I bought a ghost from the classifieds here a while back and noticed it had a slow leak from the weep hole that could actually be heard if in a really quiet room. I utilized this forum and BRK's excellent maintenance videos to troubleshoot and fix the leak by replacing some O-rings on the regulator. I actually completely disassembled, cleaned and replaced all the O-rings since I had it apart anyway. Pretty easy with all the resources available. Put it back together and had no more leaks, yay! But.......after setting the regulator to 150b and shooting a couple hundred pellets through it I've noticed the first shot of the day was slower and had a different POI than follow on shots for the rest of the session. The tiny Huma reg gauge didn't show a pressure change from what I had set but I began to wonder how accurate it was because something is changing. Put the chrony on it and discovered the 1st shot to be way slower than everything after it. Here's the latest 24 shot string:
Shot count: 24
Low: 807
Hi: 893
Avg: 871
STD Dev: 15
Spread: 86
7/21/24 17:40:44,807,FPS,64.8,FT Lbs,
7/21/24 17:41:01,861,FPS,73.6,FT Lbs,
7/21/24 17:41:20,872,FPS,75.6,FT Lbs,
7/21/24 17:41:37,863,FPS,74.0,FT Lbs,
7/21/24 17:41:52,886,FPS,78.0,FT Lbs,
7/21/24 17:42:05,872,FPS,75.6,FT Lbs,
7/21/24 17:42:18,872,FPS,75.6,FT Lbs,
7/21/24 17:42:35,870,FPS,75.2,FT Lbs,
7/21/24 17:43:18,865,FPS,74.4,FT Lbs,
7/21/24 17:43:26,879,FPS,76.8,FT Lbs,
7/21/24 17:43:34,868,FPS,74.8,FT Lbs,
7/21/24 17:43:43,877,FPS,76.4,FT Lbs,
7/21/24 17:43:55,870,FPS,75.2,FT Lbs,
7/21/24 17:44:07,870,FPS,75.2,FT Lbs,
7/21/24 17:44:13,893,FPS,79.3,FT Lbs,
7/21/24 17:44:30,865,FPS,74.4,FT Lbs,
7/21/24 17:45:04,868,FPS,74.8,FT Lbs,
7/21/24 17:45:17,877,FPS,76.4,FT Lbs,
7/21/24 17:45:24,879,FPS,76.8,FT Lbs,
7/21/24 17:45:30,875,FPS,76.0,FT Lbs,
7/21/24 17:45:36,879,FPS,76.8,FT Lbs,
7/21/24 17:45:45,870,FPS,75.2,FT Lbs,
7/21/24 17:45:56,881,FPS,77.2,FT Lbs,
7/21/24 17:46:07,884,FPS,77.6,FT Lbs,
Is this a normal deviation for the Ghost outside of that really low 1st shot?
I replaced the Huma gauge with a digital gauge and discovered the reg creeps up to 163b sitting overnight. It settles in to approximately 150-153b between shots. Did I screw something up during the regulator rebuild? Thanks for reading all this if you've made it this far!
Shot count: 24
Low: 807
Hi: 893
Avg: 871
STD Dev: 15
Spread: 86
7/21/24 17:40:44,807,FPS,64.8,FT Lbs,
7/21/24 17:41:01,861,FPS,73.6,FT Lbs,
7/21/24 17:41:20,872,FPS,75.6,FT Lbs,
7/21/24 17:41:37,863,FPS,74.0,FT Lbs,
7/21/24 17:41:52,886,FPS,78.0,FT Lbs,
7/21/24 17:42:05,872,FPS,75.6,FT Lbs,
7/21/24 17:42:18,872,FPS,75.6,FT Lbs,
7/21/24 17:42:35,870,FPS,75.2,FT Lbs,
7/21/24 17:43:18,865,FPS,74.4,FT Lbs,
7/21/24 17:43:26,879,FPS,76.8,FT Lbs,
7/21/24 17:43:34,868,FPS,74.8,FT Lbs,
7/21/24 17:43:43,877,FPS,76.4,FT Lbs,
7/21/24 17:43:55,870,FPS,75.2,FT Lbs,
7/21/24 17:44:07,870,FPS,75.2,FT Lbs,
7/21/24 17:44:13,893,FPS,79.3,FT Lbs,
7/21/24 17:44:30,865,FPS,74.4,FT Lbs,
7/21/24 17:45:04,868,FPS,74.8,FT Lbs,
7/21/24 17:45:17,877,FPS,76.4,FT Lbs,
7/21/24 17:45:24,879,FPS,76.8,FT Lbs,
7/21/24 17:45:30,875,FPS,76.0,FT Lbs,
7/21/24 17:45:36,879,FPS,76.8,FT Lbs,
7/21/24 17:45:45,870,FPS,75.2,FT Lbs,
7/21/24 17:45:56,881,FPS,77.2,FT Lbs,
7/21/24 17:46:07,884,FPS,77.6,FT Lbs,
Is this a normal deviation for the Ghost outside of that really low 1st shot?
I replaced the Huma gauge with a digital gauge and discovered the reg creeps up to 163b sitting overnight. It settles in to approximately 150-153b between shots. Did I screw something up during the regulator rebuild? Thanks for reading all this if you've made it this far!