Does anyone have info/experience about the relative amount of expansion in hollow points at velocities less than the optimum design parameters?
For example; I carry 230gr Golden Sabers in my 3" Colt .45 New Agent, and figuring 45fps-per-inch loss in velocity from the 5" test standard, I would be shooting at 740fps velocity. GS's are designed for maximum expansion at 830fps. So, I guess my question is on a scale of "0" expansion to maximum expansion, what should I expect in a defensive situation?
Thanks for your response.