I know that's what they're claiming, but where's the proof?

We've had all kinds of arguments about whether KE or momentum is the better determinant for predicting penetration, but their arrows fall short on both counts.

Just look at the comparison chart they have on their website. You notice they don't list KE for any of those arrows, just speed. But someone that takes the time to break out the ol' calculator can easily see what's going on.

Take their fastest arrow, 250 grains @ 342 fps. That calcs out to 65 ft lbs. Look at the other brands: 378 gns @ 281 fps = 66 ft lbs; 413 gns @ 270 fps = 67 ft lbs; 473 gns @ 256 fps = 69 ft lbs. If you figure momentum, their 250 gn arrow has 20% less mo than the 378 gn arrow; 24% less than the 413; 30% less than the 473.

There is no way I buy that their arrows will give better penetration on game. The laws of physics are not on their side.

Not to mention that their retained energy downrange has got to be atrocious.