SWThomas

I have no concrete information at all....in fact one of the reason I would not consider purchasing a Triumph is that I did not want a break-open rifle... Shotgun OK but rifle I dear the loss of accuracy as the pin loosens....

But since I have now become the owner of a Triumph I have done some rationaliztion... the barrel and sights remain the same all the time so really the hinge should not effect accuracy... but in my mind I know it can to some degree. I believe you can associate it to 'harmonics' - if the harmonics in your barrel stay the same each time you shoot a certain load with a given projectile - then all should be equal. With a break open those harmonics can be changed each time you install the forearm or possibly as the pin becomes looser and may create a different harmonic.

I personally believe the forearm installation to be a greater influence than the hinge loosening. The hinge will wear over time and the POI may wander slightly over time and in most cases you catch this wander every time you repare your rifle for the hunting season... you make those slight adjustments as they occur.

When you read the information that people share when they discuss the ruger #1 and the installation of the forearm, even what Lee (leomoyne or Lee9) did to stabilize his forearm installation on his Triumph you can see why the forearm is important. For me and me only the wear of the hinge pin should be a gradual thing that you keep up with and at some point you will have to make the modification.

Just thinking off the top of my head....