Hatsan Bull boss Huma-AIr
- Thread starter jez408
- Start date
32FPE
Thats using a 18gr pellet at 900FPS
If the size of the valve port would allow for 900fps. I like I said earlier you may need to open up the valve. It's your biggest point of restriction.
maybe this will help you choose pellets and speeds for your tunes in the future.
Here the formula for FPE:
fps X fps X pellet grain / 450240 = FPE
900 x 900 x 18/450240 = 32.382
Cheers Mont
Thats using a 18gr pellet at 900FPS
If the size of the valve port would allow for 900fps. I like I said earlier you may need to open up the valve. It's your biggest point of restriction.
maybe this will help you choose pellets and speeds for your tunes in the future.
Here the formula for FPE:
fps X fps X pellet grain / 450240 = FPE
900 x 900 x 18/450240 = 32.382
Cheers Mont
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