Beeman Beeman Raider

I recently purchased the .25 caliber model. The excessive hammer bounce was immediately apparent. Has anyone found a solution? Will the Bstaley mod work on this gun?
I'm working on one now. I ran mine back flush to the rear of the end cap and turned it in until it started to bounce than backed it off. Not sure what the shot string is yet, need to run it over the crony. Rick ran his flush on a .177 and apparently gets a good shot string from 2k to just above 1k for like 30 shots. Not sure how this will do on a .25. Going to run mine over the chrony on Sunday and see what it gets on various tunes. Transfer port does not seem to seal all that well.
 
I'm working on one now. I ran mine back flush to the rear of the end cap and turned it in until it started to bounce than backed it off. Not sure what the shot string is yet, need to run it over the crony. Rick ran his flush on a .177 and apparently gets a good shot string from 2k to just above 1k for like 30 shots. Not sure how this will do on a .25. Going to run mine over the chrony on Sunday and see what it gets on various tunes. Transfer port does not seem to seal all that well.
What is thetell tale that the TP does not seal well?
 
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What is thetell tale that the TP does not seal well?
You can feel the air escaping under the breech. Might be that the valve is cylindrical and does not have a recess where the seal sits against the valve. Or could be because it's plastic and it's flexing. I might have put the seal back on wrong but still looked questionable to me when i first did the teardown. I did not get a chance to chrony it as I have other projects that are calling my name. I plan to chrony it and I'm going to do a complete teardown and mod it for 1 mag at 50fpe as a light weight .25 hunting rig that I don't mind banging up. I plan on removing the front cap to keep it short.
 
If anyone is interested in taking the shroud of, the front of the barrel shroud unscrew. Once that part is off the second shroud part needs to be pulled towards the muzzle end while slightly rotating it left and right. It has a ramp that tightens it on as the first shroud was screwed on. Pic of the barrel end.
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