Will start with 80 grains of 3ff. Better than .5 inch of wall 4140 steel.Figured out what charge to set off yet? It does look cool!
Thanks for looking. Not sure of the scale. The barrel is 14" long and if you look close, you will see a 7.62x39 round for reference.Okay, clueless on the scale... what size/dimensions is that beauty??
This is my own design. I wanted something different than the norms.What did you use for plans ?