My Bobcat 22 is shooting 18.1 JBS pellets at 840fps. I'd like to bump it up to a little over 900fps. I've read references to adjusting this , how is that done I have no idea.
Bobcat 22 how to raise velocity
- Thread starter ahobie17
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it's a MK1 unregulated. Kind of figured it should be shooting at higher velocity that 845fps. At least I'm hoping for more if possible.
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It appears your Bobcat is generating 28.37 ft/lbs of energy with the 18.1 gr JSB. That's not bad but for me seems a bit low for a Bobcat. I believe the .22 Bobcat has a power wheel which essentially adjusts the transfer port alignment. On the highest setting, the transfer port would be fully exposed hence no restriction to the volume of air released during a shot. You might want to investigate this on your rifle. If the TP got out of alignment on your Bobcat, it may explain why you aren't getting a full 30 ft/lbs which is what I would consider standard for a .22 Bobcat. You should also check all seals and o-rings to ensure you are not losing air through the breech or power adjuster.
The other course of action would be to see if you can increase the hammer spring tension using an adjustment screw. Here is an excerpt from an FX 400 user who was trying to increase power:
"When I remove the stock I can see just above the trigger a round plug with a 3/16" hex wrench hole in it. If I turn this clockwise, it looks like it will increase the tension of the hammer spring and make the hammer hit the valve harder and release more air per shot. And I assume that adjusting it counter clockwise will do the opposite. "
I'm not sure if the Bobcat has such a screw so you may have to remove the stock and poke around.
Ultimately, your best course of action would be to contact AOA and see what they suggest. Keep in mind that FX rifles have a 1 year warranty so hopefully yours is still covered.
I hope that helps.
Scott
The other course of action would be to see if you can increase the hammer spring tension using an adjustment screw. Here is an excerpt from an FX 400 user who was trying to increase power:
"When I remove the stock I can see just above the trigger a round plug with a 3/16" hex wrench hole in it. If I turn this clockwise, it looks like it will increase the tension of the hammer spring and make the hammer hit the valve harder and release more air per shot. And I assume that adjusting it counter clockwise will do the opposite. "
I'm not sure if the Bobcat has such a screw so you may have to remove the stock and poke around.
Ultimately, your best course of action would be to contact AOA and see what they suggest. Keep in mind that FX rifles have a 1 year warranty so hopefully yours is still covered.
I hope that helps.
Scott
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I have a factory regulated Bobcat in .22 that also shoots between 840 and 850 fps. I think Fx set it there to maximize shot count and consistency.
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At the back of the gun there is a brass plug. It was turned clockwise 1/4 of a turn to raise the velocity to approx 870fps (30.79 ft/lbs) , then 1/2 turn to approx 890fps (31.896 ft/lbs of energy). This is acceptable.
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