My question has to do with the actual procedure and protocol you use to set up your FX Panthera for different slugs and pellets. When I speak of methodology, I am speaking to the process to figure out the regulator and HST settings for a slug or pellet of a certain grain weight.
The manual that comes with my FX Panthera 25 caliber 600 mm barrel air rifle has ideas that help one start. For example, it says to start with the macro hammer spring tension adjuster set to 13. Then using the micro HST adjuster to fine tune the hammer spring tension. It does not tell you specifically when to do this, but it does tell you how to do this. I want to know the when do I do this operation?
The next thing in the manual is the externally adjusted AMP regulator. It tells you where the hex screw is located and to turn it counterclockwise to increase regulator pressure, and clockwise to decrease pressure. The manual also provides you with the warnings about making sure that the plenum is depressurized prior to making these adjustments. It tells you to fire the air gun several times after making approximately one-fourth turn adjustment. Then observe the regulator pressure to see if it is stabilized at its new setting. Again, when, and why should someone perform this regulator change is a mystery.
Nowhere does the manual ever establish the protocol to use when tuning the air gun for a pellet or slug. That is what I am trying to get to. Here are my questions and I would appreciate detailed answers.
1. What is the protocol to follow to achieve a good tune, and how will I know when I am at the good tune point? What I am looking for is a detailed step by step process that one could use to achieve a good tune for a specific slug or pellet out of the FX Panthera 600 mm. The reason I say 600 mm is because it does have the heavy superior barrel for slugs.
2. Often, I see statements like "I'm trying to achieve 935 ft per second with a 40-grain slug". My question is how does one know what FPS is good for a specific slug or pellet? Where do these numbers come from?
3. When my FX Panthera arrived, it was set up NICELY for JSB match Diablo King heavy Pellets 33.95 grain. My regulator was at 110 bar and HST set to 2.3. The pellets travel at 875 ft per second on average. At 50 yards it is dead accurate. Now I would like to know what other FX Panthera 25 caliber 600 mm barrel owners have determined for their air gun regarding other slugs and pellets. For example, I would love to have FX Panthera settings (regulator and HST) in terms of FPS for JSB knockout slugs 33.49 grain, FX hybrid slugs 26 grain, Zan 41 grain slugs and AVS 40 grain slugs .2503 diameter. Of course, all these projectiles are for a 25 caliber FX Panthera.
The essence of what I am looking for is the methodology of achieving a good tune for an FX Panthera. Step by step what do you do to achieve a good tune? Where do you start? How do you know when you have achieved a good tune? How do you determine what is a good FPS for a specific slug or pellet? How do I know when I am wasting air?
Please share your ideas and methods with the FX Panthera community.
The manual that comes with my FX Panthera 25 caliber 600 mm barrel air rifle has ideas that help one start. For example, it says to start with the macro hammer spring tension adjuster set to 13. Then using the micro HST adjuster to fine tune the hammer spring tension. It does not tell you specifically when to do this, but it does tell you how to do this. I want to know the when do I do this operation?
The next thing in the manual is the externally adjusted AMP regulator. It tells you where the hex screw is located and to turn it counterclockwise to increase regulator pressure, and clockwise to decrease pressure. The manual also provides you with the warnings about making sure that the plenum is depressurized prior to making these adjustments. It tells you to fire the air gun several times after making approximately one-fourth turn adjustment. Then observe the regulator pressure to see if it is stabilized at its new setting. Again, when, and why should someone perform this regulator change is a mystery.
Nowhere does the manual ever establish the protocol to use when tuning the air gun for a pellet or slug. That is what I am trying to get to. Here are my questions and I would appreciate detailed answers.
1. What is the protocol to follow to achieve a good tune, and how will I know when I am at the good tune point? What I am looking for is a detailed step by step process that one could use to achieve a good tune for a specific slug or pellet out of the FX Panthera 600 mm. The reason I say 600 mm is because it does have the heavy superior barrel for slugs.
2. Often, I see statements like "I'm trying to achieve 935 ft per second with a 40-grain slug". My question is how does one know what FPS is good for a specific slug or pellet? Where do these numbers come from?
3. When my FX Panthera arrived, it was set up NICELY for JSB match Diablo King heavy Pellets 33.95 grain. My regulator was at 110 bar and HST set to 2.3. The pellets travel at 875 ft per second on average. At 50 yards it is dead accurate. Now I would like to know what other FX Panthera 25 caliber 600 mm barrel owners have determined for their air gun regarding other slugs and pellets. For example, I would love to have FX Panthera settings (regulator and HST) in terms of FPS for JSB knockout slugs 33.49 grain, FX hybrid slugs 26 grain, Zan 41 grain slugs and AVS 40 grain slugs .2503 diameter. Of course, all these projectiles are for a 25 caliber FX Panthera.
The essence of what I am looking for is the methodology of achieving a good tune for an FX Panthera. Step by step what do you do to achieve a good tune? Where do you start? How do you know when you have achieved a good tune? How do you determine what is a good FPS for a specific slug or pellet? How do I know when I am wasting air?
Please share your ideas and methods with the FX Panthera community.