Q - What is the difference between the ignition sets with the True Radius ("TR") sear and the other ignition sets with the National Match ("NM") sear?
A- The difference is only in the two sears. The hammers and disconnectors are the same part in either set. The "NM" sear and the "TR" sear differ only in the configuration of the sear nose on the primary contact surface. The NM sear nose has a primary contact surface that is completely flat, the same as has been the standard for decades. The "TR" sear nose is shaped in a radius, following the arc that the sear rotates in when the trigger is pulled.
Q – What can I expect the trigger break to feel like with the TR sear versus the NM sear?
A – Both sears give you a crisp trigger break. Maybe my trigger finger has become “desensitized” over the years, but both give me a pull that I can be totally happy with. Folks with a more sensitive touch than mine tell me that the TR sear gives a “rolling” feel, where the NM give a “snapping ice cycle” feel. Your mileage may vary…..
Q – What about a “rolling break”? What’s the story there?
A – A rolling break is popular primarily with some bulls eye shooters. It is achieved by using a TR sear with a tiny escape angle and a hammer with extra long hooks – like out to .028” - .030” if you can find them. The trigger pull is described like a Double Action revolver pull, although not nearly as long. I am not thoroughly versed on those, as I do not shoot bulls eye.
Q – Why does the TR sear cost more than the NM?
A – Because I hand-stone each TR sear, both nose and escape angle. That takes time and time is money. My True Radius sear is one of the few on the market that is supplied with hand stoning. The NM sear is factory prepped and polished.
Q – Why do your ignition sets cost a little more than buying the individual pieces?
A – My ignition sets having TR sears are inspected under a microscope and alignment jig allowing the sear nose and hammer hooks to be matched to each other. Again, it’s an issue of time equaling money.