Quote:

Originally Posted by **-=ArchAngel=-** ... A lighter round with a faster speed may have its potential if its able to maintain most of it's initial speed during extended flight. |

Only if it has a better ballistic coefficient. I've seen nothing that supports this being the case.

My Assumptions:

121 round has a Form Factor (nose and tail shape) equal to or worse than an FS round.

121 round has a weight worse than an FS round (this is a fact so far as published, and I believe I heard the rep at LL say 2.x grams)

121 round has a diameter approximately the same as an FS round (this is fact so far as published).

My Conclusion:

The round will definitely fly worse than an FS round.

Further Analysis:

Assuming that the Form Factor (i) of the 121 is the same as the FS round (.9070), the weight is 2.3grams, and the diameter is .685 (like an FS round):

Variables:

Form Factor (i) = .9070

Weight in pounds (M): .0051

Square of Diameter in inches (A): .685^2 = .4692

Equations:

SD = M/A

BC = SD/i

Solve for SD:

.0051/.4692 = .0109

Solve for BC:

.0109/.9070 = .0120

For comparison, here are other BC values:

.683, 3g paintball: .0057

SA 121 Round: .0120

First Strike Round: .0162

This is of course assuming that the form factor is not degraded by the forward shell lip, or the skirt shape/condition, and that the centes of gravity and pressure allow the round to be stable in flight.