There have been several threads over the years on reloading this cartridge for the Models 1871 and 1871/88. I did not find where anyone ever answered the question raised as to whether the Bertram Bra$$ had the correct thickness rim. While some rifles seem to be fine with the .348 based reformed brass, others found there was excess headspace due to the rim being thinner than the original. Several people questioned whether the Bertram produced cases had the proper thickness, but I didn't find an answer.
I plan on trying the Buffalo Arms .348 Win based brass, but would like to know if the Bertram is really proper dimensioned brass, or just a more expensive brass which will give some excess headspace.
Thanks for any definite answers.