I cleaned my barrel and now I'm having 1 inch groups at 50 yards, before the cleaning it was shooting 1/2 inch at 50 yards.. I don't know much about this gun I got it a month ago.. any advice on what to do...
What solvent, if any, did you use to clean it? What lube did you use on the pellet probe? Maybe one or both effected the breech seal. Shoot it over a chrony and check velocity consistency.
I turned the hammer spring adjuster 2 1/2 revolution and my speed doesn't change, can the hammer spring affect the accuracy? Before was shooting at the same speed but accurate..
you will need a crony to find the height of the rainbow of the hammer spring in relation to the supply pressure, if you go over the rainbow the speed will slow down and the blast will it louder and shot count will drop.
Most likely it affect your POI, if you don't know the current speed in witch the gun likes. On most FX AG the more you compress the Hammer spring the slower it will shoot.
I think the hammer spring isn't working.. I turned the hammer spring adjuster more the 5 revolutions and the fps still the same 915- 925.. what do you thing?
DO NOT do anything to adjust the speed to increase the power since you are already doing close to 930fps in the highs so don't mess around with the regulator or power adjuster. Your chrony numbers appear to be within a reasonable amount of acceptable spread to shoot accurately at 50 yards. I wouldn't want to increase the speed anyway and would personally rather have it shooting in the 860-880s at maximum for accuracy if you want the tiniest groups on paper. I would back the power down! Shoot it when there is NO WIND. Check to see your scope mounts are secured as well as the stock mounting screw or screws and see if that helps. Shoot it without the shroud. Then if that does not fix it, try shooting its favorite pellets but use a new tin with a different lot number. NOTE- the OLD-older the JSB pellets in 22 the better and there is also a one year or so lot of pellets to avoid but sad to say many of them are not labeled.