Interesting article on big bore rifle penetration

[Big Frank]

Bang a gong. Get it on.

[ratcatcher55]

Young Elton John on piano.

[kilopaparomeo]

Candidate for Thread Drift of the Year Award.  Start with big bore penetration end with Elton John.  Not what I intended   

[billt]

"When one tests the same bullet at 2300-2400 fps (as is characteristic of the 458 Lott) one finds that the penetration comes up nearly 20% short of that produced by the 458 Winchester. And when one tests the same bullet at the blistering speeds characteristic of the mighty 460 Weatherby Magnum, one finds that the penetration achieved is the most shallow produced by the various 458s."

This is not a universal result. It greatly depends on the bullet. For example when Speer was producing their Tungsten Carbide Core African Grand Slam Bullets they advertised 60" of penetration, (5 FEET), in pine with the .460 Weatherby Magnum. When you get energy levels that high with a properly constructed bullet, it takes a lot to stop it. Look at AP bullets in the .50 BMG cartridge. It's amazing what they will get through.  Bill T.

[kilopaparomeo]

Thank you Bill for bringing us back from the brink.

True statement as they were only looking at a single bullet type, the 500 gr Hornady solid.  What would be a more conclusive study is to look at a range of bullets at a range of velocities and use that to see if there is a correlation to be drawn from velocities. 

[Sponsor]

[tombogan03884]

Thank you Bill for bringing us back from the brink.

True statement as they were only looking at a single bullet type, the 500 gr Hornady solid.  What would be a more conclusive study is to look at a range of bullets at a range of velocities and use that to see if there is a correlation to be drawn from velocities. 

Don't blame us  it was your picture.     

[Ichiban]

Candidate for Thread Drift of the Year Award.  Start with big bore penetration end with Elton John.  Not what I intended   

There is a joke in there somewhere but I'm not going to be the one to drag it out.   

[RevLouM]

But isn't the .577 specifically designed for T-Rex?

All aside, I agree that the velocity issues are all about the LINE from the muzzle TO THE target.

[TAB]

no, the 577 was a nitro express to start out with. strait walled and rimmed.

the 577 t rex was made by A square in the 90s( I want to say 92 or 93)   its a bottle neck rimless

[tombogan03884]

Another thread was posted about Hemingway's .577NE Westley Richards double rifle coming up for auction.