That's where the watermelon comes in. They are mostly water. It's like shooting a gallon jug filled with water. The faster you hit them, the more violently they'll explode.

I used to have a 45-70. Too slow to blow stuff up as violently as some of the faster cartidges. I have attached the results of shooting a Heineken mini-keg with the 300 Wby.

I'm going with the soft points because they are much cheaper than Barnes X bullets and I want quick expansion for this project.