That Bullet Energy Calculator works the same as my Ballistics Calculator as far as Energy/Bullet Weight x Velocity. However it is useless as a tool to compare Effective Range based on minimum Terminal Energy and Impact Velocity as shown on the chart I prepared. One has to use a Ballistics Program that takes MV, ME, BC, and SD in to account as well as Bullet Weight in order to determine Impact velocity.
My statement on a closed thread,
"Have personally seen 4 moose taken, with one shot, at 600 yards with three different Caliber/ Bullet combinations. The 3006 with Win 180 PPP bullets had 1415 f/s IV and 1106 ft.lbs. TE and the perfectly mushromed bullet came to rest "under the hide on the other side" and the moose fell over on the spot. Two shot with the 270 Win using Win 130 PPP ammunition were hit with 1747 ft.lbs. IV and 881 ft. lbs. TE and they both died on the spot but the bullets were not recovered as they spent their remaining Momentum/Energy on mother earth. The fourth was shot with My 7mm08 running a 140 Nosler SB bullet at 3000 fps MV and the moose walked about 10 steps before falling dead (perhaps 10 seconds). The 1891 f/s IV was greater than both the 270 and 3006 as was the 1112 ft.lbs TE. ", has the exact same 600 yard TE for the 130 grain, 180 grain and 140 grain bullets as the Bullet Energy Calculator using the IV of each bullet respectively.
When one claims that a Magnum or Larger Capacity is more powerful than a smaller one it really depends on the Effective Range based on Minimum IV and TE of the load chosen. The chart I put together quickly points out that a 300 Win Mag or STW with Winchester 150 PPP Factory Ammunition defiantly have less effective range on moose than 6.5 CM Factory 143 ELDX ammunition. It also shows that a Barnes 140-X Handload atMV 3300 fps in a STW has 1200 ft. lbs. TE at
655 yds. compared to
745 yards in a Factory 143 ELD-X 6.5 PRC load. I remember back when I first loaded my 7mm-08 with the 145 Speer BTSP to 2940 fps and mentioning to a friend that it was the same as his load in a 7X64 Brenneke. His response was that his rifle was bigger than mine. When I reminded him that his load was the 145 Speer BTSP at 2940 fps he thought a minute and said, " Well I guess you are right". Well I think he quickly realized that the IV and TE were going to be equal so his rifle, although "Bigger than mine", was not "More Powerful". I will leave it to you to decide which Cartridges are "More Powerful" in the above examples and re - post the chart so it is easy to see the comparisons.
[IMG]
[/IMG]