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6mm Creedmoor first elk hunt

Sorry I meant TSX. Bullet referenced earlier in this thread. 270 grain. Cartridge pushing it is irrelevant. Started at 3000 fps. 5000 ft altitude, 20 degrees out.

At 600 yards that TSX will be under 2,000 fps and will have a very good chance of penciling through the lungs yielding little damage. The animal would probably die as a result of the shot but will likely travel a long way. Not very good killing energy in this application. In my view the 108 would be the better choice for you in this application, more killing energy.
 
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I don't think there is a need to assign the term "killing energy" to what you're talking about. You really can't come up with a "killing energy" formula to determine wounding ability. Maybe you can but it's velocity and bullet construction driven and it doesn't really have anything to do with energy.

Velocity can be measured and we can easily determine velocity at impact, we can learn what wound channels look like from different bullets at different impact velocity's and make the determination of what's enough for the task based off those things. Then shoot some critters and look at their insides and see what happened and make our own decisions.
 
Seeing as it is my made up nomenclature I can define it as I like and I kinda like "killing energy".
(Velocity + weight) x bullet construction/distance = killing energy. There you go a formula.
 
Seeing as it is my made up nomenclature I can define it as I like and I kinda like "killing energy".
(Velocity + weight) x bullet construction/distance = killing energy. There you go a formula.
Haha, let's say it's measured in terms of IWU (international wallop units)! Assuming it still holds for African game and Ibex, markhor, etc.
 
At 600 yards that TSX will be under 2,000 fps and will have a very good chance of penciling through the lungs yielding little damage. The animal would probably die as a result of the shot but will likely travel a long way. Not very good killing energy in this application. In my view the 108 would be the better choice for you in this application, more killing energy.

Killing energy…..or potentially more tissue damage? That damage due to the frangibility of the bullet!

Using the same scenario that you presented, a hit broadside, directly into the heaviest part of the front shoulder ….which has a greater likelihood of a kill!

Though, the kill would then likely come from the much greater mass, allowing the bullet to penetrate into the vitals……again energy irrelevant! memtb
 
6mm Remington was my truck gun for many years, went through 3 barrels on the rifle. Built a 6 CM a year ago to replace it. Killed a lot of deer and smaller critters with it, shot deer with 60 to 105 grain bullets. 90 grain Nosler accubond is my chosen bullet for deer. At 300 yards this bullet will penetrate through both shoulder at 3200 mv. I did find a bullet under the hide of mature muley buck, if I recall it was around 55 or 60 grains. Never used the Scirocco in .243, has worked well in 30 cal. I would think your Sirocco bullet 400 yards and in should work on an Elk on a well placed shot. 2000 FPS impact velocity seems to be about the limit for the 30 cal Sirocco.
 
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