I bought some Midway Dogtown 55gr 6mm bullets and stopped shooting them in my 243 rifle because they were blowing up. So I load them with 40gr of 2230 in my 243 win Striker at about 3000 fps. Today about half blew up upon leaving the barrel. Some keyholed and others looked like tracers tumbling away. The gun shoots everything else great, but I will not buy anymore of these bullets.

Just throwing this out there for info.