I had plans to get a round of testing done with some 6.5mm bullets yesterday, but completely spaced and left my ammo box at the house, 90 minutes away! LOL I did have my muzzleloader kit with me so I sent a couple of rounds into the gel anyways. The gun is a Knight .52cal Bighorn using 120gr of Triple 7 powder for both loads.
Here's the video and still shots from the gel test.
275gr Bloodline
405gr Rem
The still photo of the 405gr bullet isn't as impressive since it hit on the far side of the block, but you can still make out the wound cavity. The video of the 405's impact is pretty impressive though.
275gr Knight Bloodline. This is the top-down view.
I was amazed that the bullet exited the second block, that's 32" of penetration before exiting. I fired a 275gr copper HP from a 45-70 into the gel blocks with a similar impact velocity and it barely made it through the first block. All of the petals exited the first block by about the 8" mark. This is consistent with what I saw on a deer I shot with this same load last season; I saw exit holes in the hide from the petals. The entrance hole looks like it was cut with a cookie cutter!
405gr Rem FP. I use these for plinking and when somebody else wants to shoot the muzzleloader.
This bullet curved up and to the left, exiting the second gel block after 22" of penetration. I found one fragment of the jacket and small bits of lead through the bullet's path, so the bullet did expand.
The initial damage done by the Bloodline in the first 8" of penetration was pretty spectacular and the remaining shank left a good wound cavity. The 405gr jacketed bullet just left a very consistent wound cavity the full length of penetration, similar to what I see from hard cast lead bullets from a handgun.
Codyadams sent me some of the Super Buldozer bullets to test and CA48 sent me some 30 cal Bergers, so I'll get to those in the next few trips out. I also picked up some of the 175gr Sierra Gamechangers for the 270 that I'll get tested as well. And I still have a bunch of Hammer bullets to test too.
As long as folks stay interested, I'll keep doing the tests. I have another 2 blocks of gel on the way, so I'll have a total of 7 to work with now.