How many foot lbs of energy would the 1000 fps crossman phantom 1000x get with a 16.1 gr pellet??

Question

.177 cal

Answer 1

When I ran the numbers through an air-gun kinetic energy calculator I came up with a muzzle energy of 35.74 fl-lbs of energy. I'm including a link to a free calculator so you can check the numbers yourself (and try permutations).

That said the 1000 fps ratings on your air-gun was not achieved with a 16.1 grain pellet. It was more likely attained with an 8 grain (or lighter) pellet. In that case they muzzle energy would be 17.76 ft-lbs (or less).

Answer 2

There is a saying...."Give a man a fish and you feed him for a day.  Teach a man to fish and you feed him for a lifetime."  With that in mind, I am not going to calculate the kinetic energy of the pellet for you but I will teach you how to calculate it for yourself.  Then you will be able to compare the kinetic energy of various pellets for yourself any time you want to.  So, here is how to do it:  Take the velocity of the pellet in feet per second and square it.  Then multiply that number by the weight of the pellet in grains.  Divide the number that you get by 450,400 and you will have the foot pounds of kinetic energy of that pellet at that velocity.  Realize, of course, the pellet will not retain the muzzle velocity down range.  It will be slowing down all the time it is traveling through the air.  This is caused by air resistance and air resistance will depend on the shape of the pellet.  Some slow more than others.  But if you do the math that I gave you, you will be able to compare various pellets at various velocities pretty well.

Answer 3

>>How many ft lbs of energy would the Crosman Phantom 1000X get with 16.1gr pellets<<

The ME(Muzzle Energy) of your Phantom is going to be around 14.20fpe no matter what weight pellet you use.

You are NOT going to make your Phantom somehow and instantly more powerful by using the heavier Eun Jin(16.1gr) pellet. >I wish it was that easy lol<

The heavier pellet will bring the fps numbers down, it will not give you a more powerful rifle.  

The Crosman Phantom is "around" a 14.20fpe rifle, no matter the pellet.

1000fps - 6.5gr pellet = 14.15fpe

900fps - 7.9gr pellet - 14.21fpe

630fps - 16.1gr pellet - 14.19fpe

IMO, Pellets somewhere in the 7.8gr to 8.6gr range generally work best for rifles in the Phantom's power range. If you keep your fps somewhere between 850-950, that's great. I "shoot" for 900fps, since that usually gives me both a very accurate(rifle/pellet combination) and a very flat trajectory out to the effective range of the rifle.

The heaviest(.177) pellet that I have used on a consistent basis was the Beeman Silver Arrow(11.5gr), and that was in a powerful RWS 350 Magnum(25fpe + rifle)

Answer 4

Assuming that is 16.1  grains

35.74 ft-lbs