RE: Bullet weight and energy per pound of animal
 

And the best part of all this is it's doing all this with a lot less powder which equalls a pleasant blast and recoil

RE: Bullet weight and energy per pound of animal
 

Right, and comparing it to a 117 grain Round Nose bullet, loaded to enemic velocities, kind of an unfair comparison.

The two I quoted from Federal are pretty equal as far as bullet construction and BC, and loaded to standard velocities for each respective cartridge.

RE: Bullet weight and energy per pound of animal
 

The 257 Roberts is loaded pretty mild from the factory because it started out life as a wildcat and many old Mausers were used to build these rifles on. With the Winchester +P brass it can be loaded to its true potential. My loads are not real hot but I load the 100 grain X bullet to about 3100 fps. I just have a 22 inch barrel on mine. The 243 loads run up to 58000 lbs pressure where the Roberts is loaded to 45000. In modern cases and modern rifles the Roberts can be loaded to simular pressures. The 250 Savage is also loaded to 44-45000 in respect for the old lever action and pump rifles in which it was chambered. I have a 250 Savage it tne 700 Classic with a 24 inch barrel. I shoot the X bullets in 100 grain at about the same speed as the Roberts or about 3100 fps. The X bullet because of its long bearing surface will fire this load with the same powder charge that only produces 2800 fps with standard bullets.

Although I don't load it near as hot as it could be loaded(because I don't need the velocity) the 25-06 can better my other 25's by 200-300 fps. I just load the 100 grain Ballistic tip to 3064 and thw 115 ballistic tip to 2940.

I Load my 243 to 2900 fpr with the 85 grain Sierra HP Game King. It could be loaded to 3200+ but I don't need that velocity with this bullet.

RE: Bullet weight and energy per pound of animal
 

Who really cares which cartridge beats out another by a few fps or foot pounds. The fact of the matter is, and the purpose of the thread, we are all overgunned when it comes to hunting whitetail deer.

If we were to use the same energy per pound of animal that the 270 generates on a 200 pound deer to hunt cape buffalo we would need to use a cartridge capeable of propelling a 1000 grain bullet at about 2600 fps generating 15000 foot pounds of energy.



Or how about a 160 grain 7mm STW on a 110 pound antelope?
That's 2670 foot pounds of energy at 200 yards as loaded by Federal.
That comes out to 1.46 grains per pound and 24.27 foot pounds per pound of animal.

Take those numbers and use them on a 1500 pound animal.
That's a 2190 grain bullet at 2740 fps. generating 36,405 foot pounds at impact.
[:o][:o][:o]


Anyone care to build a rifle that will equal the on game performance of the "deer cartridges" on larger game like buffalo, elephants, rhinos, etc.?????

RE: Bullet weight and energy per pound of animal
 

Ive actually been seriously thinking about the .260 rem as maybe my next gun purchase.

RE: Bullet weight and energy per pound of animal
 

bigbulls. You are right. Thats one reason that I like the 250 Savage. I do also use the 25-06 which I suppose it over gunning as well. I used to use a 222 which is the smallest legal gun in our State. It worked just fine. I would choose my 22-250 over my 243. I am afraid that I am one of the awful sinners who uses the puny 270 for Elk.:D

RE: Bullet weight and energy per pound of animal
 

Sorry to get off subject bigbulls, lol. Didn't mean to honest:eek:. I have thought about that before concerning how much power per pound is lost when you start getting into the larger animals. The cartridges seem to get smaller per pound. Thanks for the comparison though.

And on the subject of calibers for deer, I have considered the .257 Roberts to build on my Czech VZ 24 action I have, to fit right between my .223 and .30-06:D

RE: Bullet weight and energy per pound of animal
 

Dang it! I was just contemplating buying a remchester .458 superduperultrashortmagnum for the coming deer season because all of the magazine ads show that this is the ultimate armorclad monster buck stopper out to 850 yards, but Bigbulls brought to light that I indeed really don't need that much gun to bring down a 150 lb whitetail that I will most likely shoot less than 50 yards away.[8D]

People like Bigbulls would be considered a heretic to companies like remchester or weatherby.:D

RE: Bullet weight and energy per pound of animal
 

Briman,
No, but tune in later for the lastest comparison.....
The 243 Winchester VS the 460 Weatherby Magnum. They go neck and neck but the 243 wins out overall.;)

RE: Bullet weight and energy per pound of animal
 

:D:D:D:D:D:D:D 10-4! Swamp!!