I have a Very similar sprint run, red FRN in M390 Steel.
one of my very favorite knives!
Think of that knife as a vaccine, like the covid vaccine, its one you will have to take every year. Signed Dr KNIFouci
Oh Yea!
Cleaned it very well, went to the range shot about 50 rounds and cleaned it again.
First time it was relatively dry, after the second cleaning i ran it wet. No change.
Came home thoroughly cleaned it again.
second range trip it took the automatch which ran well but the CCI SV and others...
I did look for a used one, but i wont buy an expensive used gun from an unknown source. I know too many people who have gotten screwed becsuse of kitchen table gunsmiths.
You have NO IDEA!
My FFL asked me if it was a used gun.
FILTHY, metal shavings, wear marks.
I wouldnt have purchased the gun in that state if i saw it in person. The down side of the internet. I looked for it locally, but Davis only had a 7” with an insane price tag on it.