| cooch |
| (.300 member) |
| 30/12/09 02:16 PM |
Re: Big Bore bullets--sectional density vs velocity
|
Quote:
I've tested high SD bullets that penentrated no more deeply than bullets with much lower SD's. Just because a bullet has a low SD doesn't mean it will automatically penetrate less.
All things equal in two bullets of identical construction, SD means something. As a guarantor of penetration in and of itself, not much anymore.
Try plugging the following phrase into you search-engine of choice.
"Terminal Sectional Density"
There is a school of thought that the SD after impact and full expansion is a far better indicator of penetration than unexpanded SD.