What does it entail when a gun is said to be trued and blue printed? I know the "end game' but what is the process to make it "trued and blue printed?"
Trued and Blueprinted ?
- Thread starter drafter
- Start date
Depends on the smith unfortunately. They are vague definition and not a “spec” that means the same everywhere.
Some places uses blueprint as the max you can do, Greg tannel uses it as minimum, with “accurizing” being his full tilt.
www.gretanrifles.com
Some places uses blueprint as the max you can do, Greg tannel uses it as minimum, with “accurizing” being his full tilt.
Blueprint Action | gretanrifles
Remachine action and bolt, Bush firing pin hole & turn pin Single point re-machine action & bolt, Bush firing pin hole & turn pin, Lap lugs. Minimum Recommended to actions.This is for all actions, not action specific.Price $285.00
www.gretanrifles.com
Last edited:
They square things up. “Trued” is used more. Blueprint is overused. They really are not blueprinted, as in old school actual blue engineering paper prints drawn up. Blue printed is a signaling buzz word that high degree of accuracy and fitting was used. I’ve never seen actual blueprints made of a trued action.
Afaik, they square the boltface, threads, and lugs to be sure no angle is introduced when closed.
There are bunch of videos on what all they do. For instance, this guy has multiple-part videos that outline what is done in the full process:
If you want the quick summary, believe it or not Potterfield has a video about it.
If you want the quick summary, believe it or not Potterfield has a video about it.
Thanks all. As a journey man tool and die maker, this would be a piece of cake with the correct tools. I currently am running a couple HAAS CNC mills and an older Fadal. Working in a machine shop allows the luxury of making or customizing anything I want. I need to price out the necessary tooling to perform this and decide if it's worth the investment and/or even offer this as a side job.
I never thought to just simply google it on Youtube.
Thanks again.
I never thought to just simply google it on Youtube.
Thanks again.
I could be wrong, but my understanding is that while each smith does seem to have their own definition of what is "blueprinted" and what is "trued", I believe a common differentiation between the two for a lot of smiths is that blueprinting squares things up while leaving the receiver threads unmolested, therefor allowing the use of prefit barrels while truing typically includes working on the receiver threads and results in an action that will need to have barrels fitted by a smith.
Last edited:
