[Third_Rail]

[argumentative/inflammatory remark(s) deleted by CW]... I thought that claypipe said he was a metallurgist.


So I guess I'll tough it through 4140 or 4130, then heat treat. Easy machining isn't anywhere as important as safety.

 

[Third_Rail]

My mistake, I thought you had stated you were a metallurgist.


4140 is what I'll be using for my projects from now on re: firearms. Cost be damned, time be damned, safety is paramount.

 

[Third_Rail]

Agreed on that. Did you bother with heat treating?

I doubt I will - just overbuild them further.... breech thickness = bore diameter, barrel thickness = 1/2 bore diameter. Out of 4140, and with reasonable loads of powder, that'll be plenty strong. Now just to get about 10 million opinions, to make sure!