Yes, I know I need to get a Go/No go gauges but they won't arrive for awhile.

Got a new model 10 fcp in 300 wsm. First thing was to get a brake for it. Being the goof that I am I took off the barrel without taking the front scope base off and flattened the barrel threads a tiny bit, not really an issue but ...
Just got the barreled action back from the smith and he did an awesome job with the brake. He said he didn't have the gauges or a cartridge to set the head space and left the nut loose.
Using a cartridge I got it to where the round chambers freely and with 1 piece of scotch tape its VERY tough, and with 2 pieces theres no way to close it.
My issue is this.... I did use a cartridge (rifle has never been fired so couldn't use once fired) and now the rifles cartridge designation " savage mod 10 300wsm ..... " is now hidden in the stock in the 12o clock position.
Can this be right? Safe?
Whats your take on this?