9mm bergmann vs largo? destroyer question
The bergmann is listed as a mid 30kpsi cartridge.
the largo is listed as a 18k psi round

the destroyer is marked 9/mm bergmann!!

I've always "known" the largo and bergmann to be interchangable... and the destroyer is marked with the higher pressure of the two.

it doesn't REALLY matter, as i am sending the bolt and action off to be heat treated, anyway

any help would be appreciated

Hmm!

Here in "Yurrup" we have these annoying cartridges that "vex" us! The classics being .30 Mauser vs 7.62mm Tokarev and 9mm Parabellum vs 9mm Glisenti.

Still you aren't immune from it in the US with 38 ACP vs 38 Super!

Have you tried asking - if there is that ability - at this website:

http://www.9mmlargo.com/

And specifically this:

9mm Largo Ammunition

It may be that heat treating is therefore superfluous as in fact your 9mm Bergmann chambered carbine is in fact actually 9mm Largo "safe" pressure safe!

Thank you .. I have seen this site, certainly .. but there's no email to ask .. I have emailed the creator of quickload