WullieH
Proactive member
Downloaded this a while ago but can't mind where from but might help some folk out.
-
the Daily hi thread
Pellet speed
- Thread starter WullieH
- Start date
ukzero1
Super member
Thanks for that, much appreciated. 
old git
Member Extraordinaire
Thats handy thank you.
That's a useful resource - thanks!
Les
Member Extraordinaire
Excellent info - thank you for posting it!
poison dwarf
Busy member
heres one with markers. i think green markers are for bfta comp values not sure tho.
LINK
docs.google.com
LINK
Pellet-Velocity-Energy.xlsx
WullieH
Proactive member
This one was made by Chris Cundey I believe but is very good just had issue trying to post it myself as said restricted.heres one with markers. i think green markers are for bfta comp values not sure tho.
LINK
Pellet-Velocity-Energy.xlsx
Deerstalker
Super member
This may help anyone that wants to check the numbers.
FPS = Feet Per Second, MPS = Meters Per Second, FPE = Foot Pounds of Energy.
To convert to Joules multiply FPE by 1.3558, Joules to FPE multiply by .7376
FPE Formula is Pellet weight (gr) x FPS x FPS divided by 450240 or 450436.7.
FPE x 450240 or 450436.7 divided by pellet weight gr = FPS squared.
450240 is 2 x velocity of gravity x 7000, (2 x 32.16 x 7000 = 450240)
450436.7 is 2 x velocity of gravity x 7000, (2 x 32.17405 x 7000 = 450436.7)
The constant 450240 or 450436.7 depends on which value you use for the velocity of gravity, 32.16 ft/s/s or 32.17405 ft/s/s. There are 7000 grains in one pound. The difference does not matter which ever constant is used for the FPE calculation.
FPS = Feet Per Second, MPS = Meters Per Second, FPE = Foot Pounds of Energy.
To convert to Joules multiply FPE by 1.3558, Joules to FPE multiply by .7376
FPE Formula is Pellet weight (gr) x FPS x FPS divided by 450240 or 450436.7.
FPE x 450240 or 450436.7 divided by pellet weight gr = FPS squared.
450240 is 2 x velocity of gravity x 7000, (2 x 32.16 x 7000 = 450240)
450436.7 is 2 x velocity of gravity x 7000, (2 x 32.17405 x 7000 = 450436.7)
The constant 450240 or 450436.7 depends on which value you use for the velocity of gravity, 32.16 ft/s/s or 32.17405 ft/s/s. There are 7000 grains in one pound. The difference does not matter which ever constant is used for the FPE calculation.
Paulsos
Proactive member
Thanks 
Mark Palmer
Member Extraordinaire
Very handy
James_rhodes
Proactive member
Handy to keep for reference 
davev8
Active member
usefull thanks
Sniper3
Busy member
Quite handy, something to look forward to.
Deerstalker
Super member
HW95L .22 Chrono #s shot today.
| Pellet Rifle performance data results (10/28/2024) | |||||||
| Shot Number | Pellet Weight (Grain) | Speed (FPS) | Speed (MPS) | FPE (450240) | FPE (450436.7) | Joules | Range (FPS) |
| 1 | 14.66 | 719.0 | 219.2 | 16.83 | 16.83 | 22.82 | 713 Low |
| 2 | 14.66 | 721.0 | 219.8 | 16.93 | 16.92 | 22.95 | 722 High |
| 3 | 14.66 | 718.0 | 218.8 | 16.79 | 16.78 | 22.76 | |
| 4 | 14.66 | 722.0 | 220.1 | 16.97 | 16.97 | 23.01 | |
| 5 | 14.66 | 718.0 | 218.8 | 16.79 | 16.78 | 22.76 | |
| 6 | 14.66 | 713.0 | 217.3 | 16.55 | 16.55 | 22.44 | |
| 7 | 14.66 | 716.0 | 218.2 | 16.69 | 16.69 | 22.63 | |
| 8 | 14.66 | 717.0 | 218.5 | 16.74 | 16.73 | 22.69 | |
| 9 | 14.66 | 721.0 | 219.8 | 16.93 | 16.92 | 22.95 | |
| 10 | 14.66 | 722.0 | 220.1 | 16.97 | 16.97 | 23.01 | |
| Mean Values | Grain 14.66 | FPS 718.7 | MPS 219.05976 | 16.82 | 16.81 | 22.8 | Spread 9 |
| FPS = Feet Per Second, MPS = Meters Per Second, FPE = Foot Pounds of Energy. | |||||||
| To convert to Joules multiply FPE by 1.3558, Joules to FPE multiply by .7376 | |||||||
| To convert MPS to FPS, MPS x 3.2808399 = FPS . | |||||||
| To convert FPS to MPS, FPS x .3048 = MPS. | |||||||
| FPE Formula is Pellet weight (gr) x FPS x FPS divided by 450240 or 450436.7. |
junglie2022
Member Extraordinaire
Thanks that's really handy as I've just replaced my shot combro with a chinese one that just measures fps.
Plinky Dave
Member Extraordinaire
I made up this ready reckoner to keep handy as a pic on my phone.
.22 .20 and .177 with a variety of common pellets
.22 .20 and .177 with a variety of common pellets
junglie2022
Member Extraordinaire
Good idea adding the green, amber, red traffic light colouring.
AimPerfect
Super member
I made this one for our club. Contains common grain weights in .177 and .22. If anyone wants the original Excel file, let me know.
