Edit: OK, I watched both. Interesting. I want a .30-06 and whatever he was shooting at the end, .54 something. Holy smokes, nearly knocked the whole target over!
The 30-06 with 220gr bullets worked great. The last round used in the second video was a .577-450 Martini-Hery round with a 600gr lead bullet at 1100fps per the video. The 44 mag worked well as did buckshot and the Brennecki Slug. The 7.62x39 didn't do so well. The 30-30 did good with two shots but a dead center limb hit took the bullet apart.
I saw an article once, Shooting Times maybe, where a guy set up dowels in a grid and fired thru them. It was constructed so it was impossible to shoot thru it without hitting something. Long story short, he found no real ‘brush buster’. Bullets with greater mass seemed to do better than lightweight lightning rounds. But, I recall, everything deflected to some extent. Tho I don’t think he tested shotgun slugs.
I remember that article. Remember we are talking about shooting through brush and not limbs. His test wasn't as accurate as the videos I posted. In the video the 30-30 punched a limb and cut it in half and blew the bullet up. The core and jacket still hit the target but were not going to be effective as a deer killer. And I agree because that very same thing happened to me.
I was sitting on a suitcase deer stand at my buds house. I had a buck that walked right up to the deer stand. All I could see was hair in the scope. Of course I could have just pointed at shot but couldn't bring myself to shoot a deer 6 foot away. So I let him walk away a little.
The way he was going he would pass a Mesquite Tree that had a split in the branches with a big hole in the center to shoot through. So I shot with the deer about 25 yards away. The deer flinched a little and in the scope I saw a huge crater erupt beside the deer. The deer calmly walked off and disappeared in the brush and I never got a second shot. I got down and walked to where the deer was when I fired and found a couple of drops of blood. I spent the next hour until dark looking for more blood and a dead deer. I never found either one.
The next day I wen back bright and early to see if the buzzards had found my deer. Nope, no buzzards. So I went back to the stand and replayed what happened. I got back in the stand and then saw something I hadn't seen earlier. A limb shot clean in two about the size of my thumb. Thats when I figure out what had happened and I guess a piece of bullet jacket had hit the deer and made a minor cut that bled a little. What I saw in the video just confirmed my theory.
I never saw the limb in the scope. Optics will do that. When focused on something in the distance they will blur out something close. For those who didn't watch the videos you really should. There is good information in there. I am not a real fan of the poster but that video was a good one.