Wind resistance of pellets?
I am currently shooting my Talon with 15.9g JSBs going 875fps for 27 ft lbs of energy. I am getting a .25 barrel and plan on shooting the 25.4g JSBs(if they are the most accurate) at about the same speed for just over 43 ft lbs of energy. Will the extra power help the pellet buck the wind better or will it be about the same because of the larger surface area of the .25 pellet? I also know that the bc has to do with wind resistance but I would think that a pellet with similar bc but more weight, power, and surface area would still buck the wind better.
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If two pellets have the same BC under the same conditions (BC varies) they will perform similarly. The good news for you is that the heavier pellet of similar design will usually if not always, have a higher BC and out perform the lighter pellet.
And, no matter the BC, the heavier pellet going the same speed will put more energy on target, even if it dropped just as much on the way there!
Thanks Jerry
BC is a made up number that describes the pellets resistance to slowing down. By “made up” I don’t mean silly or pointless, just that it is a dimensionless figure arrived at by namipulation of observations. The best way to describe it is to say that BC tells you how close a pellet performs in air as opposed to how well it would perform in a vacuum.
If two pellets have the same BC under the same conditions (BC varies) they will perform similarly. The good news for you is that the heavier pellet of similar design will usually if not always, have a higher BC and out perform the lighter pellet.
And, no matter the BC, the heavier pellet going the same speed will put more energy on target, even if it dropped just as much on the way there!
Viewing 4 replies - 1 through 4 (of 4 total)
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The .20 cal Crosman Premier at 14.3 gr is why I like shooting .20 caliber. I would speculate that the .20 cal Premier would hands down out perform the .22 caliber version at 14.3 gr -given they are shot at the velocities -lets say 950 fps. The 13.7 .20 cal JSB is like a laser beam in ideal conditions and it has a higher bc than the premier–something like .030= these pellets stay moving fast for a long time—in fact my SS 18″ is forever .20 caliber- gonna add alittle weight to the hammer -sell my 12 and 18″ .177 barrels and get a dedicated .177 gun —–a synthetic stock BSA Scorpion bull barrel in .177 or a or synthetic stock .177 FX Cyclone the .177 jsb heavy has a bc of .031 😈