Just started running the 50g TNT in my 1:9 22-250. Early stages of development but min book charge and they're holding together so far, won't be looking to go full speed just incase. About 3500fps...
Type: Posts; User: charliehorse
Just started running the 50g TNT in my 1:9 22-250. Early stages of development but min book charge and they're holding together so far, won't be looking to go full speed just incase. About 3500fps...