Not sure Mystery cares at this point, but for the rest of you, an older Buck Mark Bullseye is probably the way to go in this area. They all have 7 1/4-in. bull barrels with some fluting on the sides. The older models had the full Silhouette package: triggers drilled for an overtravel screw from the factory and a low-tension sear spring with an adjustable pretension screw, so you can get the trigger weight really light. Those springs stopped being available from any source I can find in ~2015. If someone has any sitting around, I'd like to buy a few.
Browning has sold Silhouette and Bullseye models in the past few years, but without the Silhouette trigger goodies.