Hello i am doing research on hybrid cannons and i was using HGDT and i'm using a 3/4" "Type M" Copper Chamber as my combustion chamer, it says that it will have a combustion pressure of 408 PSI.
Can Type M Copper Handle 408 PSI?
Mini Hybrid Chamber Type M Copper
Yes, just make sure your solder joints are very well done.
That's mighty small chamber. In any case, I would probably go with Type L, but M should hold it.
As I was referred, so I shall refer: Copper tube handbook.
I've used 3/4 L at 8.5x without a problem, but make sure you check out the specific size/type you end up using at the above link.
I've used 3/4 L at 8.5x without a problem, but make sure you check out the specific size/type you end up using at the above link.