Does anyone know why I am getting better velocity out of the new JSB Hades pellets then the Crosman Premier? I am shooting a Gamo Wildcat Whisper in .22
Pellet velocity question
- Thread starter Nathrall
- Start date
Could be you are getting a better gas seal, or that the true caliber size matches your barrel better.
There are a lot of different potential answers to the question that are right.
I think crosman uses a harder lead than JSB and the gas seal (skirt) is smaller than the jsb
There are a lot of different potential answers to the question that are right.
I think crosman uses a harder lead than JSB and the gas seal (skirt) is smaller than the jsb
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Thank you. I was impressed that the trajectory was significantly better from 25yds to 50yds.
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I can't tell you what pellets are harder in led or not but it sounds like the gas seal part of it is spot-on.
I can tell you that when I use 8.44gr jsb's with 4.52 head size they are about 15 to 20 feet per second slower than the 4:53 and the gun likes the larger one's better, even at different velocities. ;~)
I can tell you that when I use 8.44gr jsb's with 4.52 head size they are about 15 to 20 feet per second slower than the 4:53 and the gun likes the larger one's better, even at different velocities. ;~)
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I am getting a lot better trajectory and velocity. I am not complaining at all of course! Just asking why.
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Nathrall,
It is most likely both the fit in your barrel, along with the hardness of the lead on the Crosman pellets. Crosman depends upon a tight fitting pellet in a bore in order to make a seal. Their pellets skirt does not "blow out" so to speak, like most other pellets do. This would be obvious if you recovered each pellet after it is shot.
To give you an idea, if I sight in my Steyr LG 110 FT with 7.9 grain Air Arms pellets at around 820 FPS, which is close to my limit, then try shooting a Crosman Premier at 7.9 grains, it would go almost 100 FPS slower, due to the tight fit.
Tom Holland
Field Target Tech
It is most likely both the fit in your barrel, along with the hardness of the lead on the Crosman pellets. Crosman depends upon a tight fitting pellet in a bore in order to make a seal. Their pellets skirt does not "blow out" so to speak, like most other pellets do. This would be obvious if you recovered each pellet after it is shot.
To give you an idea, if I sight in my Steyr LG 110 FT with 7.9 grain Air Arms pellets at around 820 FPS, which is close to my limit, then try shooting a Crosman Premier at 7.9 grains, it would go almost 100 FPS slower, due to the tight fit.
Tom Holland
Field Target Tech
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