OK.. I have had a MRod for about a year. I didn't own a chrony until a couple weeks ago, after she got an Avenger. Bought a chrony, because the Avenger was advertised as being very adjustable. It Is.
But.. I made the mistake I guess, of mounting it on my Marauder .25, shooting the 25.39 King, lightest pellet I have, and most accurate by a smidge.
After watching 11teen videos, reading the manual 8 times and adjusting the "velocity screw" the hammer tension and the hammer travel, up down sideways, following several suggested settings on videos and blogs, airing to various pressures from 2200 to 3000 psi..
762fps average over 8 shots, is the best velocity I have seen. only 7fps spread, so it's consistent, but it's advertised as a 900fps gun out of the box in .25
suggestions?
Because I hate it when I search the web and find questions, much like whatever I am looking for, and the threads often just die, with no answer if anything worked or not..
I received a couple of barrel o-rings in the mail today. Some silicone grease and 1 placed in the rifle where it belongs. The bolt feels different then it used to, and I think ever did. Returned the hammer spring tension and hammer travel to where they were when I started, left the velocity screw at 4.5 turns (it was at1 turn initially) My POI came up 3/4 of an inch at my 25 yard zero, and a 10 shot string averaged 879fps with a 2.2 fps spread. It also does seem quieter, so guess she gets to keep the Sumo for now..
I think there is a possibility the rifle came without one, or it was lost VERY early in my ownership.. But all better now. Thanks for the help, recommendations, and guidance.
But.. I made the mistake I guess, of mounting it on my Marauder .25, shooting the 25.39 King, lightest pellet I have, and most accurate by a smidge.
After watching 11teen videos, reading the manual 8 times and adjusting the "velocity screw" the hammer tension and the hammer travel, up down sideways, following several suggested settings on videos and blogs, airing to various pressures from 2200 to 3000 psi..
762fps average over 8 shots, is the best velocity I have seen. only 7fps spread, so it's consistent, but it's advertised as a 900fps gun out of the box in .25
suggestions?
Because I hate it when I search the web and find questions, much like whatever I am looking for, and the threads often just die, with no answer if anything worked or not..
I received a couple of barrel o-rings in the mail today. Some silicone grease and 1 placed in the rifle where it belongs. The bolt feels different then it used to, and I think ever did. Returned the hammer spring tension and hammer travel to where they were when I started, left the velocity screw at 4.5 turns (it was at1 turn initially) My POI came up 3/4 of an inch at my 25 yard zero, and a 10 shot string averaged 879fps with a 2.2 fps spread. It also does seem quieter, so guess she gets to keep the Sumo for now..
I think there is a possibility the rifle came without one, or it was lost VERY early in my ownership.. But all better now. Thanks for the help, recommendations, and guidance.