Rocketman, this is the first time I have seen this chart. This is very interesting. I have often wondered how to 'quantify" feel and this seems like one way.
How do measure the HWR?
cazman, this is an excerp from my database of over 600 guns. I'm going to put up a couple of more for this thread. So far, this is the only way to quantify handling. Might I suggest we reserve "feel" for the third gun fit; first fit is stock dimensions, second is handling dimensions. "Feel," then would be gun gripping area size, shape, and texture.
Weight, balance, and unmounted swing effort (Moment of Inertia times ten)are obtained from test measurement. Mounted swing effort and HWR are calculated. Half Weight Radius (HWR) is calculated from twelve times the square root of quantity unmounted swing effort divided by ten divided by quantity weight divided by thirty two point two (for the Yildiz HWR = 12 X square root of ((1.48/10)/(4.90/32.2)) = 12 X Square root of 0.148/0.1522 = 12 X sq rt 0.9726 = 12 x .9862 = 11.83. To compare HWR, guns must be of the same weight. Primarily, HWR, once understood, is a descriptor of guns as individuals. 10 to 11 seems to be pretty much the ususal range of HWR with guns under 10 having unusually low swing efforts for their weights and guns above 11 having unusually high swing efforts for their weights.
Note, the Gibbs actually has a HWR of 9.41, not 12.00 (there was an key error in the copied formula).
Questions?
