The tip still expands so the answer is no.

A FMJ or monlithic bullet would be better for AP type penetration.

AN AP round sheads it's jacket and the penetrator continues on without expanding.

If you want real AP penetration then you'll have to use real AP bullets.

 

What type of armor? Most rifle rounds will penetrate vests which is why the game wardens I have known didn't wear vests. They figured most of the guys they dealt with were armed with hunting rifles.

 

I was wondering if it might penetrate Level III or IV body armor. I have not been bale to find any fmj for the 270 Winchester.

 

hmmmm.....

I think penetrators are better against living targets that might be behind something.

I'm pretty sure that a penetrator would be better actually.

The steel triangle tip under the copper/whatever metal coating will break through the object, then the lead behind it will deform and act like a normal bullet

This is all speculations based on the 5.56 bullets i found.... Thats what their explanation seems to say

 

So maybe a round like a Hornady SST but replace the plastic tip with a same size steel tip? I wonder how much it would cost or where to get those made at.

I'd have to learn that different bullet drop b/c of the added weight in the steel tip vs the plastic.

 

I have a feeling that the steel tip would seriously ruin the accuracy and probably spin out of balance and fling itself off the round. Either way, it would be too small and light to be much of a penetrator. An AP bullet is specifically engineered as such. True AP has a penetrator that is a large percentage of it's core.

Also, if you're talking about adding it to loaded ammo, the added weight may raise pressures dangerously.

 

Adding the tip would be dangerous and stupid...

But like i said, i think penetrators have them built in under the jacket.

 

Do you reload?

If so get some tungsten powder on ebay.

Drill a very small hole in the tip of the bullet, fill with powder and seal it.

I think you will be happy with the results.

 

If you planning on trying to make AP ammo or some form of it you might want to read the law that covers it just for CYA purposes.

http://www.recguns.com/Sources/IIG1.html

 

Why are you considering armor? If it is because someone might break in with it on?

Your 270 can already be loaded up far beyond the spec of most armor that people can get. An 06' or 300 winmag or just about any high powered rifle will go right through just about anything out there.

A standard pistol, AK or AR (etc.) round can be stopped by modern armor under most hits and most angles.

That is all just from what I have collected over the years from others. I have never been shot in any armor so I can't tell you from personal experience.

 

most rifles will punch through soft armour like a knife through butter its the plates you got to worry bout but some like mine are rated for 7.62 ap