Originally Posted by jwp475
I shoot Flat point hard cast in my hunting revolver exclusively... The buffalo was taken with the 500 Linebaugh with a 525grain WLFN at about 1100 FPS and rang was about 45 yards. That is 1410 FPE for the 500 with the 525 yet it has out penetrated the 475 with a 420 flat point hard cast at 1382 FPS not by much but more is more and also leave a slightly larger wound channel.
The 300 Win was shooting a 180 grain at about 3070 FPS and the range on the Elk was 286 yards at about 1200 feet of elevation. Exball calculated velocity at that range at 2600 FPS...
Well, I don't think hard cast bullets are quite applicable to what we're talking about, I guess they are used for hunting by some and in some cases where max penetration on extremely thick skinned game they may be a good choice. I guess your offerings bring up other questions; 1) is penetration a good indicator of trauma? 2) Is exit wound a good indicator of trauma?
Though we tend to disagree on alot of points about terminal ballistics, these discussions have illustrated why terminal ballistics is such a widely debated topic. There are no easy answers and being as it covers such a wide variety of conditions one has to tailor his tool kit to the conditions he is expecting to encounter. Each condition has it's own set of limiting factors and if a shooter doesn't address those limiting factors he's liable to recieve poor performance.
Take for instance two conditions, one being your buffalo hunt and one being a shot on a prairie dog. For the sake of simplicity lets assume that both shots will be taken at the same range, and roughly the same anatomical shot placement. For my own purposes lets say that shot placement is not Ideal and punches through the exteme bases of the lungs and halfway between the lateral midline and the spine.
Obviously our limiting factors for each condition are opposite, the buffalo being penetration and the prairie dog being expansion/quick energy dump. To complicate matters the prairie dog takes a whole lot less volume of trauma to make a clean DRT kill than the Buffalo, and we don't really give a rats posterior how much meat damage we do to the prairie dog.
(to be continued, my brother just got home 15mins ago from the sandbox)