If you have a .30 cal Karma Red Panda, here are 2 things you should know.
First of all, I am not a pro shooter, just a guy with an airgun. So this is just my observations. I think my RP is the best PCP I own and I have 4 other airguns in my stable.
I must have shot over 900 rounds of 10 different .30 cal grain slugs to tune for 200 yard bench rest.
I noticed that the POI would change after adjusting the hammer spring for a series of tuning shots.
I blamed the slugs, regulator #2 setting or hammer spring settings. (I did not blame the shooter) I could not really figure out why my groups would drop and not be consistent. Because the hammer spring indicator is on right side and I shoot from the left side, I did not notice what I will now try to explain.
After 900 shots, I figured it out!
From the factory, the hammer spring tension adjustment was set too low. I noticed that after 5-7 shots the hammer spring adjustment knob would turn almost 1 full revolution in the negative. Meaning a lower hammer spring adjustment.
If you can "very easily" turn or spin the hammer spring adjustment knob to make +/- adjustments, it's set too low. You should feel a firm and positive indexing "click" for each +- movement. Thanks to PJ at Karma, the hammer spring tension adjustment is very easy to do. See at 10:00
There are 4 screws that put pressure on the 4 ball bearings that aid in indexing the hammer spring and to adjust the hammer spring rotation tension.
Hope this helps. Now, I can only blame the "shooter" Your RP hammer spring tension may be adjusted perfectly from the factory, Mine was not.
2nd observation:
There are 2 "pins that connect the cocking lever to what if refer to as the "bolt". One or both of these pins may work themselves loose and fall out. This happen to me twice. See attached pics.
I hope this helps other RP shooters.
Rod in San Francisco aka "just a guy with a airgun"
First of all, I am not a pro shooter, just a guy with an airgun. So this is just my observations. I think my RP is the best PCP I own and I have 4 other airguns in my stable.
I must have shot over 900 rounds of 10 different .30 cal grain slugs to tune for 200 yard bench rest.
I noticed that the POI would change after adjusting the hammer spring for a series of tuning shots.
I blamed the slugs, regulator #2 setting or hammer spring settings. (I did not blame the shooter) I could not really figure out why my groups would drop and not be consistent. Because the hammer spring indicator is on right side and I shoot from the left side, I did not notice what I will now try to explain.
After 900 shots, I figured it out!
From the factory, the hammer spring tension adjustment was set too low. I noticed that after 5-7 shots the hammer spring adjustment knob would turn almost 1 full revolution in the negative. Meaning a lower hammer spring adjustment.
If you can "very easily" turn or spin the hammer spring adjustment knob to make +/- adjustments, it's set too low. You should feel a firm and positive indexing "click" for each +- movement. Thanks to PJ at Karma, the hammer spring tension adjustment is very easy to do. See at 10:00
There are 4 screws that put pressure on the 4 ball bearings that aid in indexing the hammer spring and to adjust the hammer spring rotation tension.
Hope this helps. Now, I can only blame the "shooter" Your RP hammer spring tension may be adjusted perfectly from the factory, Mine was not.
2nd observation:
There are 2 "pins that connect the cocking lever to what if refer to as the "bolt". One or both of these pins may work themselves loose and fall out. This happen to me twice. See attached pics.
I hope this helps other RP shooters.
Rod in San Francisco aka "just a guy with a airgun"
